README.md in valid_email2-1.1.6 vs README.md in valid_email2-1.1.7

@@ -90,9 +90,10 @@
 
 This gem requires Rails 3.2 or 4.0. It is tested against both versions using:
 * Ruby-1.9
 * Ruby-2.0
 * Ruby-2.1
+* Ruby-2.2
 * JRuby-1.9
 
 ## Contributing
 
 1. Fork it