Add markdown options as specified in the docs git repo

src/ejabberd_commands_doc.erl

@@ -459,7 +459,8 @@ generate_md_output(File, RegExp, Languages) ->
                        end, Cmds2),
     Cmds4 = [maybe_add_policy_arguments(Cmd) || Cmd <- Cmds3],
     Langs = binary:split(Languages, <<",">>, [global]),
-    Header = <<"---\ntitle: Administration API reference\nbodyclass: nocomment\n---">>,
+    Header = <<"---\ntitle: Administration API reference\ntoc: true\nmenu: Administration API\norder: 40\n"
+	    "// Autogenerated with 'ejabberdctl gen_markdown_doc_for_commands'\n---">>,
     Out = lists:map(fun(C) -> gen_doc(C, false, Langs) end, Cmds4),
     {ok, Fh} = file:open(File, [write]),
     io:format(Fh, "~s~s", [Header, Out]),