[brand] SearXNG - docs rename links and fix documentation

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>

docs/admin/update-searxng.rst

@@ -0,0 +1,59 @@
+.. _update searxng:
+
+=============
+How to update
+=============
+
+How to update depends on the :ref:`installation` method.  If you have used the
+:ref:`installation scripts`, use ``update`` command from the scripts.
+
+**Update** :ref:`SearXNG service <searx.sh>`
+
+.. code:: sh
+
+    sudo -H ./utils/searx.sh update searx
+
+**Update** :ref:`filtron reverse proxy <filtron.sh>`
+
+.. code:: sh
+
+    sudo -H ./utils/filtron.sh update filtron
+
+**Update** :ref:`result proxy <morty.sh>`
+
+.. code:: bash
+
+   $ sudo -H ./utils/morty.sh update morty
+
+.. _inspect searxng:
+
+======================
+How to inspect & debug
+======================
+
+.. sidebar:: further read
+
+   - :ref:`toolboxing`
+   - :ref:`Makefile`
+
+How to debug depends on the :ref:`installation` method.  If you have used the
+:ref:`installation scripts`, use ``inspect`` command from the scripts.
+
+**Inspect** :ref:`SearXNG service <searx.sh>`
+
+.. code:: sh
+
+    sudo -H ./utils/searx.sh inspect service
+
+**Inspect** :ref:`filtron reverse proxy <filtron.sh>`
+
+.. code:: sh
+
+    sudo -H ./utils/filtron.sh inspect service
+
+**Inspect** :ref:`result proxy <morty.sh>`
+
+.. code:: bash
+
+   $ sudo -H ./utils/morty.sh inspect service
+