Remove sphinx warnings on make html

docs/upgrading.rst

@@ -96,10 +96,9 @@ renamed from ``oas`` to ``stackspin``. You can choose from these options:
 Rocket.Chat
 ~~~~~~~~~~~
 
-We replaced Rocket.Chat with `Zulip <https://zulip.com>`__ in this release.
-If you want to migrate your Rocket.Chat data to your new Zulip installation
-please refer to
-`Import from Rocket.Chat https://api.zulip.com/help/import-from-rocketchat`__.
+We replaced Rocket.Chat with `Zulip`_ in this release.
+If you want to migrate your Rocket.Chat data to your new `Zulip`_ installation
+please refer to `Import from Rocket.Chat`_.
 
 Monitoring
 ~~~~~~~~~~
@@ -131,13 +130,12 @@ from v0.6 to v0.7!**
 .. note::
   Before you start, please ensure that you have the right ``yq`` tool installed,
   because you will need it later.  There are two very different versions of
-  ``yq``. The one you need is the go based `yq from Mike Farah
-  <http://mikefarah.github.io/yq>`_, which installs the same binary name ``yq``
-  as the `python-yq <https://github.com/kislyuk/yq>`_, while both have different
-  command sets.
+  ``yq``. The one you need is the go based `yq from Mike Farah`_,
+  which installs the same binary name as the `python-yq`_ one, while both have
+  different command sets.
   The yq needed here can be installed by running ``sudo snap install yq``,
-  ``brew install yq`` or with other methods from the `yq installation
-  instructions <http://mikefarah.github.io/yq/#install>`_.
+  ``brew install yq`` or with other methods from the
+  `yq installation instructions`_.
 
   If you're unsure which ``yq`` you have installed, look at the output of
   ``yq --help`` and make sure ``eval`` shows up under ``Available Commands:``.
@@ -394,3 +392,8 @@ intervention.
 
 .. _reach out to us: https://openappstack.net/contact.html
 .. _Flux: https://fluxcd.io
+.. _yq from Mike Farah: https://mikefarah.github.io/yq
+.. _yq installation instructions: https://mikefarah.github.io/yq/#install
+.. _python-yq: https://github.com/kislyuk/yq
+.. _Zulip: https://zulip.com
+.. _Import from Rocket.Chat: https://api.zulip.com/help/import-from-rocketchat

docs/usage.rst

@@ -24,7 +24,7 @@ them access to applications, take a look at the `user panel documentation
 .. note::
 
    If you don't see applications, make sure you have installed at least one
-   optional application in :ref:`additional_apps` of the installation procedure.
+   optional application in :ref:`install_additional_apps` of the installation procedure.
 
 For creating users follow the `user creation documentation
 <https://docs.stackspin.net/projects/user-panel/en/latest/#creating-a-new-user>`_.