[doc] update documentation of the installation procedures

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

docs/utils/index.rst

@@ -1,36 +1,24 @@
 .. _searx_utils:
 .. _toolboxing:
 
-===================
-Admin's tooling box
-===================
+==================
+DevOps tooling box
+==================
 
-In the folder :origin:`utils/` we maintain some tools useful for administrators.
+In the folder :origin:`utils/` we maintain some tools useful for administrators
+and developers.
 
 .. toctree::
    :maxdepth: 2
    :caption: Contents
 
-   searx.sh
-   filtron.sh
-   morty.sh
+   searxng.sh
    lxc.sh
 
-.. _toolboxing common:
+Common command environments
+===========================
 
-Common commands & environment
-=============================
-
-Scripts to maintain services often dispose of common commands and environments.
-
-``shell`` : command
-  Opens a shell from the service user ``${SERVICE_USSR}``, very helpful for
-  troubleshooting.
-
-``inspect service`` : command
-  Shows status and log of the service, most often you have a option to enable
-  more verbose debug logs.  Very helpful for debugging, but be careful not to
-  enable debugging in a production environment!
+The scripts in our tooling box often dispose of common environments:
 
 ``FORCE_TIMEOUT`` : environment
   Sets timeout for interactive prompts. If you want to run a script in batch
@@ -40,14 +28,3 @@ Scripts to maintain services often dispose of common commands and environments.
 
     sudo -H ./utils/lxc.sh cmd -- FORCE_TIMEOUT=0 ./utils/searxng.sh install all
     sudo -H ./utils/lxc.sh cmd -- FORCE_TIMEOUT=0 ./utils/searxng.sh install nginx
-
-.. _toolboxing setup:
-
-Tooling box setup
-=================
-
-The main setup is done in the :origin:`.config.sh` (read also :ref:`settings
-global`).
-
-.. literalinclude:: ../../.config.sh
-   :language: bash