docs(@angular/cli): fixing broken ng doc link in wiki

ng docs --> ng doc

Author: johnpapa

docs/documentation/home.md

@@ -50,7 +50,7 @@ End-to-end tests are run via [Protractor](https://angular.github.io/protractor/)
 * [ng e2e](e2e)
 * [ng build](build)
 * [ng get/ng set](config)
-* [ng docs](docs)
+* [ng doc](doc)
 * [ng eject](eject)
 
 ### Additional Information