fix(docs): Capitalize Angular.

docs/content/tutorial/the_end.ngdoc

@@ -5,17 +5,17 @@
 Our application is now complete. Feel free to experiment with the code further, and jump back to
 previous steps using the `git checkout` or `goto_step.sh` commands.
 
-For more details and examples of the angular concepts we touched on in this tutorial, see the
+For more details and examples of the Angular concepts we touched on in this tutorial, see the
 {@link guide/ Developer Guide}.
 
 For several more examples of code, see the {@link cookbook/ Cookbook}.
 
-When you are ready to start developing a project using angular, we recommend that you bootstrap
+When you are ready to start developing a project using Angular, we recommend that you bootstrap
 your development with the {@link https://github.com/angular/angular-seed angular seed} project.
 
-We hope this tutorial was useful to you and that you learned enough about angular to make you want
-to learn more. We especially hope you are inspired to go out and develop angular web apps of your
-own, and that you might be interested in {@link misc/contribute contributing} to angular.
+We hope this tutorial was useful to you and that you learned enough about Angular to make you want
+to learn more. We especially hope you are inspired to go out and develop Angular web apps of your
+own, and that you might be interested in {@link misc/contribute contributing} to Angular.
 
 If you have questions or feedback or just want to say "hi", please post a message at {@link
 https://groups.google.com/forum/#!forum/angular}.