[TASK] Complete extension settings documentation

Adds missing documentation for the following extension configuration
settings:
- pluginNamespaces
- includeGlobalQParameterInCacheHash
- useConfigurationMonitorTables
- enableRouteEnhancer

Relates: 2725
Relates: 3810

Documentation/Configuration/Reference/ExtensionSettings.rst

@@ -8,6 +8,28 @@ Extension Configuration
 
 The following settings can be defined in the "Settings":>"Extension Configuration":>"solr"
 
+pluginNamespaces
+----------------
+
+:Type: String
+:Since: 11.1
+:Default: tx_solr
+
+A list of white listed plugin namespaces (Required by cacheHash/excludedParameters and plugin flex form).
+
+..  note::
+    This list only is available in Plugin -> Options -> Plugin Namespace.
+
+includeGlobalQParameterInCacheHash
+----------------------------------
+
+:Type: Boolean
+:Since: 11.1
+:Default: 0
+
+Include/Exclude global q parameter in/from cacheHash.
+
+
 useConfigurationFromClosestTemplate
 -----------------------------------
 
@@ -29,6 +51,15 @@ A common common scenario is to have a site and a storage folder for records para
 on the same level (f.e.)
 If you don't want this behaviour - it should be set to false.
 
+useConfigurationMonitorTables
+-----------------------------
+
+:Type: String
+:Since: 6.1
+:Default:
+
+Monitor tables - explicitly monitor these (still requires TypoScript configuration)
+
 allowSelfSignedCertificates
 ---------------------------
 
@@ -53,3 +84,14 @@ options are available:
 
 - Delayed: Record update events will be queue and processed later, the scheduler task "Event Queue Worker" is required for processing.
 - No monitoring: Monitoring is completely disabled, please note that you have to take care of Solr index updates yourself.
+
+enableRouteEnhancer
+-------------------
+
+:Type: Boolean
+:Since: 12.0
+:Default: 0
+
+To use the EXT:solr possibility to create speaking URLs for Solr facets, activate this option.
+
+As this feature requires additional configuration and costly processing, it's disabled by default.

Documentation/Routing/ConfigureRouting.rst

@@ -16,6 +16,10 @@ The extension key have to be set to `tx_solr`.
 
 Solr specific configuration will placed inside of key `solr`.
 
+..  note::
+    To use the EXT:solr possibility to create speaking URLs for Solr facets, activate option enableRouteEnhancer in the
+    Extension Configuration.
+
 The following example shows a the basement of the enhancer configuration.
 
 .. code-block:: yaml