Bug 1478711 - Docs: Correct out of date UI testing advice

* The tests can now be run inside the VM.
* There is no longer a coverage report output.

docs/ui/installation.rst

@@ -97,16 +97,12 @@ To run eslint by itself, you may run the lint task:
 Running the unit tests
 ----------------------
 
-The unit tests for the UI are run with Karma_ and Jasmine_. React components are tested with enzyme_. At this time, these tests cannot be run inside of a Vagrant VM. To run the tests:
+The unit tests for the UI are run with Karma_ and Jasmine_. React components are tested with enzyme_. 
 
-* If you haven't already done so, install local dependencies by running ``yarn install`` from the project root.
-* Then run the following command to execute the tests:
-
-.. code-block:: bash
+To run the tests:
 
-    $ yarn test
-
-After the tests have finished, you can find a coverage report in the `coverage/` directory.
+* If you haven't already done so, install local dependencies by running ``yarn install`` from the project root.
+* Then run ``yarn test`` to execute the tests.
 
 While working on the frontend, you may wish to watch JavaScript files and re-run tests
 automatically when files change. To do this, you may run the following command: