Apply suggestions from code review

Co-authored-by: Stan Ulbrych <stan@python.org>

Author: sirosen

getting-started/pull-request-lifecycle.rst

@@ -252,7 +252,7 @@ or the :pypi:`blurb` tool and its ``blurb add`` command.
 .. tip::
 
    You can read more about ``blurb`` in its
-   `repository <https://github.com/python/blurb>`__.
+   :github:`repository <python/blurb>`.
 
 If you are unable to use the tool, then you can create the ``NEWS`` entry file
 manually. The ``Misc/NEWS.d`` directory contains a sub-directory named

getting-started/quick-reference.rst

@@ -130,7 +130,7 @@ Create pull requests
 --------------------
 
 Create pull requests on GitHub from your branches, on your fork, and make sure
-to put the relevant issue number in ``gh-NNNNNN``` format in the pull request title.
+to put the relevant issue number in ``gh-NNNNNN`` format in the pull request title.
 For example:
 
 .. code-block:: text