Merge pull request #7878 from onlinejudge95/bug/7683

Rephrases documentation

Author: pfmoore

docs/html/development/getting-started.rst

@@ -49,18 +49,18 @@ pip's tests are written using the :pypi:`pytest` test framework, :pypi:`mock`
 and :pypi:`pretend`. :pypi:`tox` is used to automate the setup and execution of
 pip's tests.
 
-To run tests locally, run:
+It is preferable to run the tests in parallel for better experience during development,
+since the tests can take a long time to finish when run sequentially.
 
+To run tests:
 .. code-block:: console
 
-    $ tox -e py36
-
-Generally, it can take a long time to run pip's test suite. To run tests in parallel,
-which is faster, run:
+    $ tox -e py36 -- -n auto
 
+To run tests without parallelization, run:
 .. code-block:: console
 
-    $ tox -e py36 -- -n auto
+    $ tox -e py36
 
 The example above runs tests against Python 3.6. You can also use other
 versions like ``py27`` and ``pypy3``.