Update README.md

Author: vishwakarma

README.md

@@ -9,7 +9,7 @@
 - When used in combination with the HTTP PATCH method as per [RFC 5789 HTTP PATCH](http://tools.ietf.org/html/rfc5789), it will do partial updates for HTTP APIs in a standard  way.
 
 
-### Compatible with : Java 6 and above all versions
+### Compatible with : Java 7+ versions
 
 ## Code Coverage
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