Remove unnecessary GitHub label

We only use this when the project page and the GitHub repo are distinct,
but that's not the case here. Additionally, when rendered, the old
format was showing an unbalanced parens, so that's fixed too.

Author: wincent

site/code/index.html.js

@@ -386,7 +386,7 @@ Executor.execute(schema, query) map println
 ### Swift / Objective-C iOS
 
   - [Apollo iOS](http://dev.apollodata.com/ios/) ([github](https://github.com/apollostack/apollo-ios)): A GraphQL client for iOS that returns results as query-specific Swift types, and integrates with Xcode to show your Swift source and GraphQL side by side, with inline validation errors.
-  - [GraphQL iOS]([github](https://github.com/funcompany/graphql-ios)): An Objective-C GraphQL client for iOS.
+  - [GraphQL iOS](https://github.com/funcompany/graphql-ios): An Objective-C GraphQL client for iOS.
 
 ## Tools