[TASK] Add small Docu to Hook Setup

ext_localconf.php

@@ -112,6 +112,7 @@ call_user_func(
 			'preInitAfter'
 		);
 
+		# Hook to add the "go to News Module Button
 		if (!is_array($GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['cms/layout/db_layout.php']['drawHeaderHook'])) {
 			$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['cms/layout/db_layout.php']['drawHeaderHook'] = [];
 		}