docs(guide/Controllers): Syntax adjustments.

Closes #12379

Author: ColinFletch

docs/content/guide/controller.ngdoc

@@ -109,7 +109,7 @@ needed for a single view.
 
 The most common way to keep Controllers slim is by encapsulating work that doesn't belong to
 controllers into services and then using these services in Controllers via dependency injection.
-This is discussed in the {@link di Dependency Injection} {@link services
+This is discussed in the {@link di Dependency Injection}  and  {@link services
 Services} sections of this guide.
 
 
@@ -165,7 +165,7 @@ scope is augmented (managed) by the `SpicyController` Controller.
 starts with capital letter and ends with "Controller".
 - Assigning a property to `$scope` creates or updates the model.
 - Controller methods can be created through direct assignment to scope (see the `chiliSpicy` method)
-- The Controller methods and properties are available in the template (for the `<div>` element and
+- The Controller methods and properties are available in the template (for both the `<div>` element and
 its children).
 
 ## Spicy Arguments Example
@@ -305,7 +305,7 @@ describe('myController function', function() {
 ```
 
 
-If you need to test a nested Controller you need to create the same scope hierarchy
+If you need to test a nested Controller you  must create the same scope hierarchy
 in your test that exists in the DOM:
 
 ```js