Fix RFC (Wikipedia) URL

Signed-off-by: Diego Viola <diego.viola@gmail.com>

rfcs/_index.md

@@ -3,7 +3,7 @@ type: docs
 ---
 
 A Request for Comment
-([RFC](https://en.wikipedia.org/wiki/Request_for_Comments>)) is a way for Arch
+([RFC](https://en.wikipedia.org/wiki/Request_for_Comments)) is a way for Arch
 Linux contributors to propose, design and discuss new features and changes in
 project direction in a focused environment.