Add contributor guide page on finding jobs in zuul

This commit adds a new contributor guide page on interacting with zuul
and how to find jobs that are currently running.

Story: 2001356
Task: 5910

Change-Id: I64743609a2ff788441e488389cd719f141b7b3bf

doc/source/code-and-documentation/index.rst

@@ -15,4 +15,5 @@ Code & Documentation Contributor Guide
    /common/task-tracking
    /common/i18n
    /common/governance
+   /common/zuul-status
    /common/patch-best-practices

doc/source/common/zuul-status.rst

@@ -0,0 +1,42 @@
+#######################
+Checking Status in Zuul
+#######################
+
+.. note::
+
+   This section assumes you have completed :doc:`/code-and-documentation/using-gerrit`.
+
+What is Zuul
+============
+
+Zuul is a tool written and run by the OpenStack Infrastructure team that is
+used to manage running continuous infrastructure jobs. It provides projects
+with a way to define test jobs that will run on each proposed commit. These
+tests are required to pass in order for any proposed patch to merge.
+
+When you push a patch to gerrit zuul will automatically trigger jobs to verify
+the patch functions properly.
+
+
+Tracking Changes in Zuul status page
+====================================
+
+You can check the status of those jobs at any time by navigating to:
+http://zuul.openstack.org/
+
+.. image:: /_assets/zuul_status/zuul_status.png
+   :scale: 65
+
+This will show you the status on all jobs running in zuul currently. You can
+expand jobs running on any patch by clicking on the box for a patch.
+
+.. image:: /_assets/zuul_status/zuul_patch.png
+   :scale: 65
+
+
+To find your specific patch in zuul you can use the search bar and search
+for the patch number. This will then filter what is displayed to just that
+patch:
+
+.. image:: /_assets/zuul_status/zuul_status_searchbar.png
+   :scale: 65