Add install link

Author: moeenio

README.md

@@ -6,7 +6,7 @@ Here's the userstyle made for you!
 
 ### Installing
 1. Install a userstyle manager ([Stylus](https://add0n.com/stylus.html) is the best for privacy)
-2. Click here, then install the style!
+2. Click [here](https://github.com/csourcesc/old-scratch-blue/raw/master/old-scratch-blue.user.css), then install the style!
 3. You're done! Enjoy the first Scratch 2 blue.
 4. Something not in the old blue ? [File a feature request](https://github.com/csourcesc/old-scratch-blue/issues/new).