docs(guide/Bootstrap): batarang link correction

Closes angular#9869

Author: inphovore

docs/content/guide/bootstrap.ngdoc

@@ -145,7 +145,7 @@ This is the sequence that your code should follow:
 
 ## Deferred Bootstrap
 
-This feature enables tools like [Batarang](github.com/angular/angularjs-batarang) and test runners
+This feature enables tools like [Batarang](https://github.com/angular/angularjs-batarang) and test runners
 to hook into angular's bootstrap process and sneak in more modules
 into the DI registry which can replace or augment DI services for
 the purpose of instrumentation or mocking out heavy dependencies.