updated font awesome license info

Author: TimidRobot

README.md

@@ -207,9 +207,11 @@ specified.
 
 ### Font Awesome
 
+This repository contains PNG icons that were converted from Font Awesome SVGs:
+
 > Font Awesome Free is free, open source, and GPL friendly. You can use it for
 > commercial projects, open source projects, or really almost whatever you
-> want. Full Font Awesome Free license: https://fontawesome.com/license/free.
+> want. (Full Font Awesome Free license: https://fontawesome.com/license/free)
 
 > **Icons:** CC BY 4.0 License (https://creativecommons.org/licenses/by/4.0/)
 > In the Font Awesome Free download, the CC BY 4.0 license applies to all icons