Clarify readme

Author: Artur Ostręga

README.md

@@ -1,9 +1,9 @@
 # Yeah
 
-Ruby video game framework, alpha stage
-
-[Latest release (alpha version 0.4.2)](https://github.com/yeahrb/yeah/tree/0.4.2#readme)
+Ruby video game framework, work in progress
 
 [Demos](https://github.com/yeahrb/yeah/wiki/Demos)
 
-[Yeah Web project](https://github.com/yeahrb/yeah-web)
+[Latest alpha release (0.4.2)](https://github.com/yeahrb/yeah/tree/0.4.2#readme)
+
+[Yeah Web](https://github.com/yeahrb/yeah-web)