docs(tutorial): remove 'going forward' nonsense

Closes #5914

time/space dimension error

Author: gjvc

docs/content/tutorial/step_00.ngdoc

@@ -73,7 +73,7 @@ angular-seed, and run the application in the browser.
 You can now see the page in your browser. It's not very exciting, but that's OK.
 
 The HTML page that displays "Nothing here yet!" was constructed with the HTML code shown below.
-The code contains some key Angular elements that we will need going forward.
+The code contains some key Angular elements that we will need as we progress.
 
 __`app/index.html`:__
 <pre>