README.md in pgrel-0.0.1 vs README.md in pgrel-0.1.0

- old
+ new

@@ -1,5 +1,7 @@
 [![Build Status](https://travis-ci.org/palkan/pgrel.svg?branch=master)](https://travis-ci.org/palkan/pgrel)
 
 ## Pgrel
 
+**Rails 5**
+
 ActiveRecord extension for querying hstore and jsonb.
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