[FEATURE] Document how to Regenerate existing code snippets

Documentation/Maintainers/Codesnippets.rst

@@ -0,0 +1,60 @@
+..  include:: /Includes.rst.txt
+..  _codesnippet-generation:
+
+=======================
+Code snippet generation
+=======================
+
+..  todo: Document how to create additional code snippets
+
+..  _codesnippet-regeneration:
+
+Regenerate existing code snippets
+=================================
+
+To regenerate the existing code snippets in a manual or extension clone
+the repository of that manual.
+
+..  code-block:: bash
+
+    git clone [email protected]:TYPO3-Documentation/TYPO3CMS-Reference-CoreApi.git
+
+
+Use composer to install all dependencies,
+including dev-dependencies. In official manuals we have a make command for
+your convenience.
+
+..  tabs::
+
+    ..  tab:: Make
+
+        ..  code-block:: bash
+
+            make install
+
+    ..  tab:: composer
+
+        ..  code-block:: bash
+
+            # in repositories where the composer.lock is not in version control
+            composer update
+
+Then regenerate the code snippets. Official manuals should have a make command
+for that.
+
+..  tabs::
+
+    ..  tab:: Make
+
+        ..  code-block:: bash
+
+            make codesnippets
+
+    ..  tab:: TYPO3 console command
+
+        ..  code-block:: bash
+
+            # Paths depends on where the vendor binaries are installed
+            # And where the configuration file codesnippets.php is located
+
+            vendor/bin/typo3 codesnippet:create Documentation/

Documentation/Maintainers/Index.rst

@@ -7,10 +7,7 @@ For maintainers
 ===============
 
 ..  toctree::
+    :glob:
     :maxdepth: 1
 
-    BackportChanges
-    FluidViewHelper
-    Changelog
-    NewMajorCoreVersion
-    Tools
+    *