Fix typos

Author: ReadmeCritic

README.md

@@ -27,8 +27,8 @@
 [Multi-Media](categories/multi_media.md) | Apps like Google Play Music, MX Player... 
 [News & Magazines](categories/news_and_magazines.md) | Apps about news and magazines. 
 [Personalization](categories/personalization.md) | Apps about live-wallpaper, launcher... 
-[Productivity](categories/productivity.md) | Apps like Any.Do, EverNote... 
-[Social Network](categories/social_network.md) | Apps like Twitter, Facebook, Github, Dribble... 
+[Productivity](categories/productivity.md) | Apps like Any.Do, Evernote... 
+[Social Network](categories/social_network.md) | Apps like Twitter, Facebook, GitHub, Dribbble... 
 [Tools](categories/tools.md) | Apps like Clean Master, Barcode Scanner, Keyboard...
 [Travel & Local](categories/travel_and_local.md) | Apps about travel or local things.
 [Business](categories/business.md) | Apps for the improvement of your business.