Added descriptions of software managed by playbooks. Will eventually …

…change to summarize playbooks themselves.

README.md

@@ -4,16 +4,16 @@ Configure servers in a snap with these concise ansible playbooks!
 
 Current Playbooks:
 
-* ZeroMQ
+* ZeroMQ - open source high-performance asynchronous messaging library
 
 Future Playbooks:
 
-* MongoDB
-* MySQL
-* Apache
-* NginX
-* Python
-* Ruby
-* RVM
+* MongoDB - open source document-oriented database system
+* MySQL - open source relational database system
+* Apache - open source web server
+* NginX - open source web server
+* Python - open source highlevel interprited programming language
+* Ruby - open source highlevel interprited programming language
+* RVM - open source Ruby version and environment manager
 
 It's that simple.