Update README.md

Author: Josh Holtz

README.md

@@ -12,7 +12,7 @@ Clone the repository and drop in the .h and .m files from the "Classes" director
 JSONAPI is available through [CocoaPods](http://cocoapods.org), to install
 it simply add the following line to your Podfile:
 
-    pod "JSONAPI"
+    pod 'JSONAPI', '~> 0.1.0'
 
 ## Usage