vimdiff: minor updates

README.md

@@ -1232,6 +1232,7 @@ CyberTalks</b></a> - talks, interviews, and article about cybersecurity.<br>
   * [kill](#tool-kill)
   * [find](#tool-find)
   * [diff](#tool-diff)
+  * [vimdiff](#tool-vimdiff)
   * [tail](#tool-tail)
   * [cpulimit](#tool-cpulimit)
   * [pwdx](#tool-pwdx)
@@ -1827,29 +1828,35 @@ diff <(cd directory1 && find | sort) <(cd directory2 && find | sort)
 ```bash
 diff <(cat /etc/passwd) <(cut -f2 /etc/passwd)
 ```
-##### Tool: vimdiff
+
+___
+
+##### Tool: [vimdiff](http://vimdoc.sourceforge.net/htmldoc/diff.html)
 
 ##### Highlight the exact differences, based on characters and words
 
-```sh
+```bash
 vimdiff file1 file2
 ```
-Compare two JSON files 
+###### Compare two JSON files 
 
-```sh
+```bash
 vimdiff <(jq -S . A.json) <(jq -S . B.json)
 ```
 
-Compare Hex dump
-```sh
+###### Compare Hex dump
+```bash
 d(){ vimdiff <(f $1) <(f $2);};f(){ hexdump -C $1|cut -d' ' -f3-|tr -s ' ';}; d ~/bin1 ~/bin2
 ```
 
+###### diffchar
+
 Save [diffchar](https://raw.githubusercontent.com/vim-scripts/diffchar.vim/master/plugin/diffchar.vim) @ `~/.vim/plugins`
 
 Click `F7` to switch between diff modes
 
-Usefull vimdiff commands:
+Usefull `vimdiff` commands:
+
 * `qa` to exit all windows
 * `:vertical resize 70` to resize window
 * Set window width `Ctrl+W [N columns]+(Shift+)<\>`