Bug 1628275 - Document how to run a try job for the in-tree documentation.r=firefox-source-docs-reviewers,sylvestre

Differential Revision: https://phabricator.services.mozilla.com/D70589

--HG--
extra : moz-landing-system : lando

tools/moztreedocs/docs/run-try-job.rst

@@ -0,0 +1,25 @@
+Running a try job for Documentation
+-----------------------------------
+
+Documentation has two try jobs associated :
+
+  - ``doc-generate`` - This generates the documentation with the committed changes on the try server and gives the same output as if it has landed on regular integration branch.
+
+   .. code-block:: shell
+
+      mach try fuzzy -q "'doc-generate"
+
+  - ``doc-upload`` - This uploads documentation to `gecko-l1 bucket <http://gecko-docs.mozilla.org-l1.s3.us-west-2.amazonaws.com/index.html>`__ with the committed changes.
+  
+   .. code-block:: shell
+
+      mach try fuzzy -q "'doc-upload"
+
+.. important::
+   
+   Running try jobs require the user to have try server access.
+
+.. note::
+
+   To learn more about setting up try server or
+   using a different selector head over to :ref:`try server documentation <Try Server>`