Add implementation detailt to README.md

Author: ubershmekel

README.md

@@ -6,14 +6,22 @@ This extension fixes the custom scrollbars that some sites have by deleting scro
 
 # Development
 
-To regenerate icons:
+## How it works
+
+Based on the answer here https://superuser.com/questions/380629/is-there-a-way-to-disable-custom-webkit-scrollbars/1585452#1585452
+
+I just run it in a setInterval.
+
+## To regenerate icons
 
 ```
 SIZE=48 ffmpeg -i wheel_128.png -vf scale=$SIZE:$SIZE wheel_$SIZE.png
 SIZE=32 ffmpeg -i wheel_128.png -vf scale=$SIZE:$SIZE wheel_$SIZE.png
 SIZE=16 ffmpeg -i wheel_128.png -vf scale=$SIZE:$SIZE wheel_$SIZE.png
 ```
 
+## Chrome extension
+
 I followed this tutorial: https://developer.chrome.com/extensions/getstarted
 
 # License