Fixed typographical error, changed accidentaly to accidentally in README.

orthographic-pedant · orthographic-pedant · commit 18eda3788460 · 2015-09-30T13:11:24.000-04:00
diff --git a/README.md b/README.md
@@ -1389,7 +1389,7 @@ y で読み込ませます。
 
 
 
-##### 12. would you like to mark this package as private which prevents it from being accidentaly published to the registry?
+##### 12. would you like to mark this package as private which prevents it from being accidentally published to the registry?
 
 bower のレジストリへ登録できないようにするか  
 どうか指定します。
