docs: add link for conditionally enabling/disabling plugin

README.md

@@ -11,6 +11,10 @@ This plugin contains rule exclusions to fix false positives when using SOGo Grou
 
 For full and up to date instructions on installing plugins, please refer to [How to Install a Plugin](https://coreruleset.org/docs/concepts/plugins/#how-to-install-a-plugin) in the official CRS documentation.
 
+### Conditionally enable plugins for multi-application environments
+
+For full and up to date instructions on how to conditionally enable/disable this plugin on a multisite environment, please refer to [Conditionally enable plugins for multi-application environments](https://coreruleset.org/docs/concepts/plugins/#conditionally-enable-plugins-for-multi-application-environments) in the official CRS documentation.
+
 ## Disabling the plugin
 The plugin can be disabled by uncommenting rule 9520000 inside ``plugins/sogo-rule-exclusions-config.conf`` or by removing the includes for this plugin.