Add karma config update reference to step 11 of the tutorial

[aschokking]

Request Type: docs

How to reproduce: On step 11 of the tutorial if you just follow the instructions on the main page the unit tests will fail.

Component(s):

Impact: small

Complexity: small

This issue is related to:

Detailed Description:

When including the ng-resource module you appear to need to add a reference to the karma config file as well or the unit tests will fail. This burned me for a while when going through the tutorial.

Other Comments:

[mary-poppins]

Thanks for the PR! Please check the items below to help us merge this faster. See the contributing docs for more information.

• Uses the issue template (#7651)

If you need to make changes to your pull request, you can update the commit with git commit --amend.
Then, update the pull request with git push -f.

Thanks again for your help!

[caitp]

LGTM

[caitp]

I've changed the text very slightly, and moved it to before the tests are written, so that people following the tutorial can get working tests faster. If you think it's bad, PRs to fix it are welcome, I'm tired and my documentation poetry is not at 100% right now =)

[aschokking]

Sounds reasonable, thanks!

[jmpalacios]

Hey @caitp!

I also reported the same problem in #7575, also clarifying that the Karma test run needs to be restarted after its conf file is modified to include the ngResource module, because new modules are not autoloaded and therefore tests will just keep on failing due to the lack of ngResource.

You might want to also address that in the docs and close my issue. Regards!