Fixed minor capitalization issues

README.md

@@ -27,7 +27,7 @@
 
 ## About
 
-This is a **solid path** for those of you who want to complete a **Computer Science** course on your own time, at **little to no cost**, with courses from the **best universities** in the World.
+This is a **solid path** for those of you who want to complete a **Computer Science** course on your own time, at **little to no cost**, with courses from the **best universities** in the world.
 
 In our curriculum, we give preference to MOOC (Massive Open Online Course) style courses because these courses were created with our style of learning in mind.
 
@@ -431,7 +431,7 @@ We also have a chat room! [![Join the chat at https://gitter.im/open-source-soci
 
 Add **Open Source Society University** to your [Facebook](https://www.facebook.com/ossuniversity) profile!
 
-> **ps**: A forum is an ideal way to interact with other students as we do not lose important discussions, which usually occur in communication via chat apps. **Please use our subreddit/group for important discussions**.
+> **PS**: A forum is an ideal way to interact with other students as we do not lose important discussions, which usually occur in communication via chat apps. **Please use our subreddit/group for important discussions**.
 
 ## Team
 
@@ -448,4 +448,4 @@ Add **Open Source Society University** to your [Facebook](https://www.facebook.c
 - [Future Learn](https://www.futurelearn.com/)
 - [Stanford University](https://lagunita.stanford.edu/)
 - [MIT Open Courseware](http://ocw.mit.edu/courses/#electrical-engineering-and-computer-science)
-- [Obtaining a Thorough CS Background Online](http://spin.atomicobject.com/2015/05/15/obtaining-thorough-cs-background-online/)
+- [Obtaining a Thorough CS Background Online](http://spin.atomicobject.com/2015/05/15/obtaining-thorough-cs-background-online/)