README.markdown in git-issue-0.9.1 vs README.markdown in git-issue-0.9.2

- old
+ new

@@ -8,10 +8,10 @@
 ## ScreenShots
 
 <img src='https://github.com/yuroyoro/git-issue/raw/master/images/git-issue_screenshot-1.png' width='600'/>
 <img src='https://github.com/yuroyoro/git-issue/raw/master/images/git-issue_screenshot-2.png' width='600'/>
 
-## Instration
+## Installation
 
     $ gem install git-issue
 
     or
 