Typo fixed

uetchy · uetchy · commit 41c297e49d5c · 2013-12-05T23:34:14.000+09:00
diff --git a/README.md b/README.md
@@ -4,7 +4,7 @@
 
 # System Requirements
 
-- OS X Mavericks(with Ruby 2.0.0)
+- OS X with Ruby 2.0.0
 
 ## Installation
 
