Update readme with how to use in component methods

The readme isn't super clear on how to use the module outside of the specific cases that are mentioned in the _Usage_ section. This just adds a small example of using it in the component `methods`.

README.md

@@ -35,7 +35,7 @@
 - [Features](#features)
 - [Setup](#setup)
 - [Usage](#usage)
-  - [Component](#component-asyncdata)
+  - [Component](#component)
   - [Store](#store-nuxtserverinit)
   - [Store Actions](#store-actions)
 - [Options](#options)
@@ -93,7 +93,9 @@ Install with yarn:
 
 ## Usage
 
-### Component `asyncData`
+### Component 
+
+**`asyncData`**
 
 ```js
 async asyncData({ app }) {
@@ -102,6 +104,17 @@ async asyncData({ app }) {
 }
 ```
 
+**`methods`/`created`/`mounted`/etc**
+
+```js
+methods: {
+  async fetchSomething() {
+    const ip = await this.$axios.$get('http://icanhazip.com')
+    this.ip = ip
+  }
+}
+```
+
 ### Store `nuxtServerInit`
 ```js
 async nuxtServerInit ({ commit }, { app }) {