Document WebCommand::serveAction()

resolves #10681

application/clicommands/WebCommand.php

@@ -9,6 +9,23 @@ use Icinga\Exception\IcingaException;
 
 class WebCommand extends Command
 {
+    /**
+     * Serve Icinga Web 2 with PHP's built-in web server
+     *
+     * USAGE
+     *
+     *   icingacli web serve [options]
+     *
+     * OPTIONS
+     *
+     *   --daemonize                Run in background
+     *   --document-root=<dir>      The document root directory of Icinga Web 2 (e.g. ./public)
+     *   --listen-addr=<host:port>  The address to listen on
+     *
+     * EXAMPLES
+     *
+     *   icingacli web serve --listen-addr=127.0.0.1:8080
+     */
     public function serveAction()
     {
         $minVersion = '5.4.0';