Revert "Fix images and alt tags, fix #621, fix #622"

admin_manual/issues/applying_patch.rst

@@ -42,6 +42,6 @@ If you found a related pull request on GitHub that solves your issue, or you wan
 4. In case you are on an older version, you might first need to go the the correct version of the patch.
 
 .. image:: images/getting-a-patch-from-github.png
-   :alt:
+   :alt: backportbot-nextcloud linking to the pull request for an older version.
 
 5. You can find it by looking for a link by the ``backportbot-nextcloud`` or a developer will leave a manual comment about the backport to an older Nextcloud version. For the example above you the pull request for Nextcloud 21 is at https://github.com/nextcloud/server/pull/26406 and the patch at https://github.com/nextcloud/server/pull/26406.patch

admin_manual/issues/code_signing.rst

@@ -61,7 +61,7 @@ the following options:
 3. Trigger a rescan.
 
 .. image:: images/code-integrity-admin.png
-   :alt:
+   :alt: Links for resolving code integrity warnings.
 
 To debug issues caused by the code integrity check click on "List of invalid
 files...", and you will be shown a text document listing the different issues. The

admin_manual/issues/general_troubleshooting.rst

@@ -91,8 +91,7 @@ contains just this line::
 Open this file in a Web browser by pointing your browser to
 ``localhost/phpinfo.php``:
 
-.. image:: ../images/phpinfo.png
-   :alt:
+.. figure:: ../images/phpinfo.png
 
 Your PHP version is at the top, and the rest of the page contains abundant
 system information such as active modules, active ``.ini`` files, and much more.