Typo fixed

gavv · gavv · commit 27b97c0a7099 · 2013-02-17T20:50:50.000+04:00
diff --git a/README.md b/README.md
@@ -114,7 +114,7 @@ Code completion with auto-complete.
 
 Requires:
 * [auto-complete][ac-ref]
-* [yasnippet][yasnippet-ref] (optionnal)
+* [yasnippet][yasnippet-ref] (optional)
 
 The configuration might look like this:
 
