diff --git a/README.md b/README.md
index a4de6e2..5530aac 100644
--- a/README.md
+++ b/README.md
@@ -8,92 +8,154 @@ Currently an awesome list of free dev courses with certificates &amp; badges.</b
 - [Front-End](#front-end)
 - [Back-End](#back-end)
 - [Blockchain](#blockchain)
-- [Data Analysis & Visualization](#data-analysis-&-visualization)
+- [Data Analysis & Visualization](#data-analysis-and-visualization)
 - [Statistics](#statistics)
 - [Data Science](#data-science)
 - [Big Data](#big-data)
-- [Deep Learning](#deep-learning)
+- [Deep Learning](#machine-and-deep-learning)
 - [Networking](#networking)
 - [Operating Systems](#operating-systems)
-- [Robotics & IoT](#robotics-&-iot)
+- [Robotics & IoT](#robotics-and-iot)
 - [Chatbots](#chatbots)
 - [DevOps](#devops)
 - [Programming Languages](#programming-langauges)
+--[C++](#c++)
+--[JavaScript](#javascript)
+--[R](#r)
+--[Python](#python)
 - [Theories & Concepts](#theories-and-concepts)
 
 ## Security
-## Front-End
-## Back-End
-## Blockchain
-## Data Analysis & Visualization
-## Statistics
-## Data Science
-## Big Data
-## Deep Learning
-## Networking
-## Operating Systems
-## Robotics & IoT
-## Chatbots
-## DevOps
-## Programming Langauges
-## Theories and Concepts
-
-
 | Course Name | Course Provider | Level | Hours | Badge |
 | :------------- |:-------------|:-------------|:-------------:|:-----:|
 | [Intro to Cybersecurity](https://www.netacad.com/courses/cybersecurity/introduction-cybersecurity)| Cisco Networking Academy | Beginner | 15 | [🏅](https://www.youracclaim.com/org/cisco/badge/introduction-to-cybersecurity)|
 | [Cybersecurity Essentials](https://www.netacad.com/courses/cybersecurity/cybersecurity-essentials)| Cisco Networking Academy | Intermediate | 30 | [🏅](https://www.youracclaim.com/org/cisco/badge/cybersecurity-essentials)|
 | [Intro to Packet Tracer](https://www.netacad.com/courses/packet-tracer) | Cisco Networking Academy | Beginner | 10  | [🏅](https://www.youracclaim.com/org/ibm-skillsbuild/badge/cybersecurity-fundamentals) |
 | [Cybersecurity Fundamentals](https://skills.yourlearning.ibm.com/activity/ILB-DNRPWDGQGMMY7GGD) | IBM / SkillsBuild | Beginner | 10 | [🏅](https://www.youracclaim.com/org/ibm/badge/cybersecurity-fundamentals) |
-| [Introduction to IoT](https://www.netacad.com/courses/iot/introduction-iot) | Cisco Networking Academy | Beginner | 20 | [🏅](https://www.youracclaim.com/org/cisco/badge/introduction-to-iot) |
-| [Networking Essentials](https://www.netacad.com/courses/networking/networking-essentials) | Cisco Networking Academy | Intermediate | 70 | [🏅](https://www.youracclaim.com/org/cisco/badge/networking-essentials)  |
-| [Programming Essentials In Python](https://www.netacad.com/courses/programming/pcap-programming-essentials-python) | Cisco Networking Academy |Intermediate| 70 | 🏆 |
-| [NDG Linux Unhatched](https://www.netacad.com/courses/os-it/ndg-linux-unhatched)| Cisco Networking Academy |Beginner| 8 |    🏆 |
-| [NDG Linux Essentials](https://www.netacad.com/courses/os-it/ndg-linux-essentials) | Cisco Networking Academy |Intermediate| 70 |🏆|
-| [Data Science Tools](https://cognitiveclass.ai/courses/data-science-hands-open-source-tools-2) | IBM / Cognitive Class |Beginner|4| [🏅](https://www.youracclaim.com/org/ibm/badge/data-science-tools)|
-| [Containers, K8s and Istio on IBM cloud](https://cognitiveclass.ai/learn/containers-k8s-and-istio-on-ibm-cloud) | IBM / Cognitive Class |Beginner|9 | [🏅](https://www.youracclaim.com/org/ibm/badge/containers-k8s-and-istio-on-ibm-cloud)|
-| [Deep Learning Fundamentals](https://cognitiveclass.ai/courses/introduction-deep-learning) | IBM / Cognitive Class |Intermediate|3 | [🏅](https://www.youracclaim.com/org/ibm/badge/deep-learning-essentials)|
-| [Docker Essentials](https://cognitiveclass.ai/courses/docker-essentials) | IBM / Cognitive Class |Beginner|4 | [🏅](https://www.youracclaim.com/org/ibm/badge/docker-essentials-a-developer-introduction)|
-| [IBM Cloud Essentials](https://cognitiveclass.ai/courses/ibm-cloud-essentials) | IBM / Cognitive Class |Beginner|4 | [🏅](https://www.youracclaim.com/org/ibm/badge/ibm-cloud-essentials.2)|
-| [Introduction to Containers, Kubernetes, and OpenShift](https://cognitiveclass.ai/courses/kubernetes-course) | IBM / Cognitive Class |Beginner|3 | [🏅](https://www.youracclaim.com/org/ibm/badge/containers-kubernetes-essentials)|
-| [How to Build Chatbots](https://cognitiveclass.ai/courses/how-to-build-a-chatbot) | IBM / Cognitive Class |Beginner|3 | [🏅](https://www.youracclaim.com/org/ibm/badge/build-your-own-chatbot-level-1)|
-| [Machine Learning with Python](https://cognitiveclass.ai/courses/how-to-build-a-chatbot) | IBM / Cognitive Class |Beginner|3 | [🏅](https://www.youracclaim.com/org/ibm/badge/machine-learning-with-python-level-1)|
+| [Information Security Certification](https://www.freecodecamp.org/learn/) | FreeCodeCamp |Professional|300 | 🏆|
+
+
+## Front-End
+| Course Name | Course Provider | Level | Hours | Badge |
+| :------------- |:-------------|:-------------|:-------------:|:-----:|
+| [Responsive Web Design Certification](https://www.freecodecamp.org/learn/) | FreeCodeCamp|Professional|300| 🏆|
+| [Front-End Libraries Certification](https://www.freecodecamp.org/learn/) | FreeCodeCamp |Professional|300 | 🏆|
+
+## Back-End
+| Course Name | Course Provider | Level | Hours | Badge |
+| :------------- |:-------------|:-------------|:-------------:|:-----:|
+| [APIs and Microservices Certification](https://www.freecodecamp.org/learn/) | FreeCodeCamp |Professional|300 | 🏆|
+| [CS403: Introduction to Modern Database Systems](https://learn.saylor.org/course/view.php?id=84) | Saylor Academy |Professional|42 | 🏆|
+
+## Blockchain
+| Course Name | Course Provider | Level | Hours | Badge |
+| :------------- |:-------------|:-------------|:-------------:|:-----:|
 | [IBM Blockchain Foundation Developer](https://cognitiveclass.ai/courses/ibm-blockchain-foundation-dev) | IBM / Cognitive Class |Beginner|6 | [🏅](https://www.youracclaim.com/org/ibm/badge/ibm-blockchain-foundation-developer-v2.1)|
 | [Blockchain Essentials](https://cognitiveclass.ai/courses/blockchain-course) | IBM / Cognitive Class |Beginner|3 | [🏅](https://www.youracclaim.com/org/ibm/badge/ibm-blockchain-essentials-v2)|
-| [Introduction to Machine Learning with Sound](https://cognitiveclass.ai/courses/blockchain-course) | IBM / Cognitive Class |Beginner|4 | [🏅](https://www.youracclaim.com/org/ibm/badge/introduction-to-machine-learning-with-sound)|
-| [Building Robots with TJBot](https://cognitiveclass.ai/courses/build-robots-with-tjbot) | IBM / Cognitive Class |Beginner|3 | [🏅](https://www.youracclaim.com/org/ibm/badge/building-robots-with-tjbot)|
-| [Deep Learning with TensorFlow](https://cognitiveclass.ai/courses/deep-learning-tensorflow) | IBM / Cognitive Class |Beginner|3 | [🏅](https://www.youracclaim.com/org/ibm/badge/deep-learning-using-tensorflow)|
+
+## Data Analysis and Visualization
+| Course Name | Course Provider | Level | Hours | Badge |
+| :------------- |:-------------|:-------------|:-------------:|:-----:|
+| [Data Analysis with Python](https://cognitiveclass.ai/courses/data-analysis-python) | IBM / Cognitive Class |Intermediate|3 | [🏅](https://www.youracclaim.com/org/ibm/badge/data-analysis-using-python)|
+| [Data Analysis with Python Certification](https://www.freecodecamp.org/learn/) | FreeCodeCamp |Professional|300 | 🏆|
+| [Data Visualization with Python](https://cognitiveclass.ai/courses/data-visualization-with-python) | IBM / Cognitive Class |Intermediate|3 | [🏅](https://www.youracclaim.com/org/ibm/badge/data-visualization-using-python)|
+| [Data Visualization with R](https://cognitiveclass.ai/courses/data-visualization-with-r/) | IBM / Cognitive Class |Beginner|3 | [🏅](https://www.youracclaim.com/org/ibm/badge/data-visualization-with-r)|
+| [Data Visualization Certification](https://www.freecodecamp.org/learn/) | FreeCodeCamp |Professional|300 | 🏆|
+
+
+## Statistics
+| Course Name | Course Provider | Level | Hours | Badge |
+| :------------- |:-------------|:-------------|:-------------:|:-----:|
 | [Statistics 101](https://cognitiveclass.ai/courses/statistics-101) | IBM / Cognitive Class |Beginner|3 | [🏅](https://www.youracclaim.com/org/ibm/badge/statistics-101)|
+
+## Data Science
+| Course Name | Course Provider | Level | Hours | Badge |
+| :------------- |:-------------|:-------------|:-------------:|:-----:|
 | [Data Science Methodologies](https://cognitiveclass.ai/courses/data-science-methodology-2) | IBM / Cognitive Class |Beginner|3 | [🏅](https://www.youracclaim.com/org/ibm/badge/data-science-methodologies)|
 | [Data Science 101](https://cognitiveclass.ai/courses/data-science-101/) | IBM / Cognitive Class |Beginner|3 | [🏅](https://www.youracclaim.com/org/ibm/badge/data-science-foundations-level-1)|
-| [R Essentials](https://cognitiveclass.ai/courses/data-science-101/) | IBM / Cognitive Class |Beginner|3| [🏅](https://www.youracclaim.com/org/ibm/badge/r-essentials)|
-| [Using R with Databases](https://cognitiveclass.ai/courses/using-r-with-databases/) | IBM / Cognitive Class |Beginner|3 | [🏅](https://www.youracclaim.com/org/ibm/badge/using-r-with-databases)|
-| [Data Visualization with R](https://cognitiveclass.ai/courses/data-visualization-with-r/) | IBM / Cognitive Class |Beginner|3 | [🏅](https://www.youracclaim.com/org/ibm/badge/data-visualization-with-r)|
+| [Data Science Tools](https://cognitiveclass.ai/courses/data-science-hands-open-source-tools-2) | IBM / Cognitive Class |Beginner|4| [🏅](https://www.youracclaim.com/org/ibm/badge/data-science-tools)|
 | [Python for Data Science](https://cognitiveclass.ai/courses/python-for-data-science) | IBM / Cognitive Class |Beginner|3 | [🏅](https://www.youracclaim.com/org/ibm/badge/python-for-data-science)|
-| [Data Analysis with Python](https://cognitiveclass.ai/courses/data-analysis-python) | IBM / Cognitive Class |Intermediate|3 | [🏅](https://www.youracclaim.com/org/ibm/badge/data-analysis-using-python)|
-| [Data Visualization with Python](https://cognitiveclass.ai/courses/data-visualization-with-python) | IBM / Cognitive Class |Intermediate|3 | [🏅](https://www.youracclaim.com/org/ibm/badge/data-visualization-using-python)|
+
+## Big Data
+| Course Name | Course Provider | Level | Hours | Badge |
+| :------------- |:-------------|:-------------|:-------------:|:-----:|
 | [Big Data Foundations - Level 1](https://cognitiveclass.ai/courses/what-is-big-data) | IBM / Cognitive Class |Beginner|3 | [🏅](https://www.youracclaim.com/org/ibm/badge/big-data-foundations-level-1)|
 | [Hadoop Foundations - Level 1](https://cognitiveclass.ai/courses/course-v1:BigDataUniversity+BD0111EN+2016) | IBM  / Cognitive Class |Beginner|4 | [🏅](https://www.youracclaim.com/org/ibm/badge/hadoop-foundations-level-1)|
 | [Spark Fundamentals I](https://cognitiveclass.ai/courses/what-is-spark) | IBM / Cognitive Class |Beginner|5 | [🏅](https://www.youracclaim.com/org/ibm/badge/spark-level-1)|
-| [Responsive Web Design Certification](https://www.freecodecamp.org/learn/) | FreeCodeCamp|Professional|300| 🏆|
-| [JavaScript Algorithms and Data Structures Certification](https://www.freecodecamp.org/learn/) | FreeCodeCamp |Professional|300 | 🏆|
-| [Front-End Libraries Certification](https://www.freecodecamp.org/learn/) | FreeCodeCamp |Professional|300 | 🏆|
-| [Data Visualization Certification](https://www.freecodecamp.org/learn/) | FreeCodeCamp |Professional|300 | 🏆|
-| [APIs and Microservices Certification](https://www.freecodecamp.org/learn/) | FreeCodeCamp |Professional|300 | 🏆|
-| [Quality Assurance Certification](https://www.freecodecamp.org/learn/) | FreeCodeCamp |Professional|300 | 🏆|
-| [Scientific Computing with Python Certification](https://www.freecodecamp.org/learn/) | FreeCodeCamp |Professional|300 | 🏆|
-| [Data Analysis with Python Certification](https://www.freecodecamp.org/learn/) | FreeCodeCamp |Professional|300 | 🏆|
-| [Information Security Certification](https://www.freecodecamp.org/learn/) | FreeCodeCamp |Professional|300 | 🏆|
+
+## Machine and Deep Learning
+| Course Name | Course Provider | Level | Hours | Badge |
+| :------------- |:-------------|:-------------|:-------------:|:-----:|
+| [Deep Learning Fundamentals](https://cognitiveclass.ai/courses/introduction-deep-learning) | IBM / Cognitive Class |Intermediate|3 | [🏅](https://www.youracclaim.com/org/ibm/badge/deep-learning-essentials)|
+| [Deep Learning with TensorFlow](https://cognitiveclass.ai/courses/deep-learning-tensorflow) | IBM / Cognitive Class |Beginner|3 | [🏅](https://www.youracclaim.com/org/ibm/badge/deep-learning-using-tensorflow)|
+| [Introduction to Machine Learning with Sound](https://cognitiveclass.ai/courses/machine-learning-sound/) | IBM / Cognitive Class |Beginner|4 | [🏅](https://www.youracclaim.com/org/ibm/badge/introduction-to-machine-learning-with-sound)|
+| [Machine Learning with Python](https://cognitiveclass.ai/courses/machine-learning-with-python/) | IBM / Cognitive Class |Beginner|3 | [🏅](https://www.youracclaim.com/org/ibm/badge/machine-learning-with-python-level-1)|
 | [Machine Learning with Python Certification](https://www.freecodecamp.org/learn/) | FreeCodeCamp |Professional|300 | 🏆|
+
+## Networking
+| Course Name | Course Provider | Level | Hours | Badge |
+| :------------- |:-------------|:-------------|:-------------:|:-----:|
+| [Networking Essentials](https://www.netacad.com/courses/networking/networking-essentials) | Cisco Networking Academy | Intermediate | 70 | [🏅](https://www.youracclaim.com/org/cisco/badge/networking-essentials)  |
+
+## Operating Systems
+| Course Name | Course Provider | Level | Hours | Badge |
+| :------------- |:-------------|:-------------|:-------------:|:-----:|
+| [NDG Linux Unhatched](https://www.netacad.com/courses/os-it/ndg-linux-unhatched)| Cisco Networking Academy |Beginner| 8 |    🏆 |
+| [NDG Linux Essentials](https://www.netacad.com/courses/os-it/ndg-linux-essentials) | Cisco Networking Academy |Intermediate| 70 |🏆|
+| [CS401: Operating Systems](https://learn.saylor.org/course/view.php?id=94) | Saylor Academy |Professional|120 | 🏆|
+
+## Robotics and IoT
+| Course Name | Course Provider | Level | Hours | Badge |
+| :------------- |:-------------|:-------------|:-------------:|:-----:|
+| [Introduction to IoT](https://www.netacad.com/courses/iot/introduction-iot) | Cisco Networking Academy | Beginner | 20 | [🏅](https://www.youracclaim.com/org/cisco/badge/introduction-to-iot) |
+| [Building Robots with TJBot](https://cognitiveclass.ai/courses/build-robots-with-tjbot) | IBM / Cognitive Class |Beginner|3 | [🏅](https://www.youracclaim.com/org/ibm/badge/building-robots-with-tjbot)|
+
+## Chatbots
+| Course Name | Course Provider | Level | Hours | Badge |
+| :------------- |:-------------|:-------------|:-------------:|:-----:|
+| [How to Build Chatbots](https://cognitiveclass.ai/courses/how-to-build-a-chatbot) | IBM / Cognitive Class |Beginner|3 | [🏅](https://www.youracclaim.com/org/ibm/badge/build-your-own-chatbot-level-1)|
+
+## DevOps
+| Course Name | Course Provider | Level | Hours | Badge |
+| :------------- |:-------------|:-------------|:-------------:|:-----:|
+| [Containers, K8s and Istio on IBM cloud](https://cognitiveclass.ai/learn/containers-k8s-and-istio-on-ibm-cloud) | IBM / Cognitive Class |Beginner|9 | [🏅](https://www.youracclaim.com/org/ibm/badge/containers-k8s-and-istio-on-ibm-cloud)|
+| [Docker Essentials](https://cognitiveclass.ai/courses/docker-essentials) | IBM / Cognitive Class |Beginner|4 | [🏅](https://www.youracclaim.com/org/ibm/badge/docker-essentials-a-developer-introduction)|
+| [IBM Cloud Essentials](https://cognitiveclass.ai/courses/ibm-cloud-essentials) | IBM / Cognitive Class |Beginner|4 | [🏅](https://www.youracclaim.com/org/ibm/badge/ibm-cloud-essentials.2)|
+| [Introduction to Containers, Kubernetes, and OpenShift](https://cognitiveclass.ai/courses/kubernetes-course) | IBM / Cognitive Class |Beginner|3 | [🏅](https://www.youracclaim.com/org/ibm/badge/containers-kubernetes-essentials)|
+
+## Programming Langauges
+### C++
+| Course Name | Course Provider | Level | Hours | Badge |
+| :------------- |:-------------|:-------------|:-------------:|:-----:|
+| [CS107: C++ Programming](https://learn.saylor.org/course/view.php?id=65) | Saylor Academy |Professional|40 | 🏆|
+
+### JavaScript
+| Course Name | Course Provider | Level | Hours | Badge |
+| :------------- |:-------------|:-------------|:-------------:|:-----:|
+| [JavaScript Algorithms and Data Structures Certification](https://www.freecodecamp.org/learn/) | FreeCodeCamp |Professional|300 | 🏆|
+
+### R
+| Course Name | Course Provider | Level | Hours | Badge |
+| :------------- |:-------------|:-------------|:-------------:|:-----:|
+| [R Essentials](https://cognitiveclass.ai/courses/data-science-101/) | IBM / Cognitive Class |Beginner|3| [🏅](https://www.youracclaim.com/org/ibm/badge/r-essentials)|
+| [Using R with Databases](https://cognitiveclass.ai/courses/using-r-with-databases/) | IBM / Cognitive Class |Beginner|3 | [🏅](https://www.youracclaim.com/org/ibm/badge/using-r-with-databases)|
+
+### Python
+| Course Name | Course Provider | Level | Hours | Badge |
+| :------------- |:-------------|:-------------|:-------------:|:-----:|
+| [Programming Essentials In Python](https://www.netacad.com/courses/programming/pcap-programming-essentials-python) | Cisco Networking Academy |Intermediate| 70 | 🏆 |
+| [Scientific Computing with Python Certification](https://www.freecodecamp.org/learn/) | FreeCodeCamp |Professional|300 | 🏆|
+
+## Theories and Concepts
+| Course Name | Course Provider | Level | Hours | Badge |
+| :------------- |:-------------|:-------------|:-------------:|:-----:|
+| [Quality Assurance Certification](https://www.freecodecamp.org/learn/) | FreeCodeCamp |Professional|300 | 🏆|
 | [CS101: Introduction to Computer Science I](https://www.freecodecamp.org/learn/) | Saylor Academy |Professional|52 | 🏆|
 | [CS102: Introduction to Computer Science II](https://learn.saylor.org/course/view.php?id=64) | Saylor Academy |Professional|42 | 🏆|
-| [CS107: C++ Programming](https://learn.saylor.org/course/view.php?id=65) | Saylor Academy |Professional|40 | 🏆|
 | [CS201: Elementary Data Structures](https://learn.saylor.org/course/view.php?id=66) | Saylor Academy |Professional|38 | 🏆|
 | [CS202: Discrete Structures](https://learn.saylor.org/course/view.php?id=67) | Saylor Academy |Professional|44 | 🏆|
 | [CS301: Computer Architecture](https://learn.saylor.org/course/view.php?id=71) | Saylor Academy |Professional|48 | 🏆|
 | [CS302: Software Engineering](https://learn.saylor.org/course/view.php?id=73) | Saylor Academy |Professional|45 | 🏆|
-| [CS401: Operating Systems](https://learn.saylor.org/course/view.php?id=94) | Saylor Academy |Professional|120 | 🏆|
-| [CS403: Introduction to Modern Database Systems](https://learn.saylor.org/course/view.php?id=84) | Saylor Academy |Professional|42 | 🏆|
 
 ## License