quickstart.md in review-3.0.0.preview2

- old
+ new

@@ -15,10 +15,10 @@
 
 Re:VIEW is a software in Ruby and worked in Linux/Unix, Mac OS X, and Windows. You can install Re:VIEW with RubyGems or Git.
 
 Note that Re:VIEW format is plain texts with simple markups in UTF-8, so you can write it on any editors and OSes.
 
-### using RubyGmes
+### using RubyGems
 
 Re:VIEW is released as RubyGems.
 
 * https://rubygems.org/gems/review