In MediaWiki, how can I include reminder text above the edit form when creating new pages? -

In MediaWiki, how can I include reminder text above the edit form when creating new pages? -

in mediawiki 1.22 add together section of reminder text straight above toolbar when user creates or edits page. there several extensions preload text straight edit form (such multiboilerplate or newarticletemplate, add together text straight above edit form's toolbar.

would $wghooks[ 'editpage::showeditform:initial' ][] , $form->editformpagetop allow me inject text described above? there way avoid straight editing mediawiki's editpage.php file accomplish this?

just add together warning page [[mediawiki:editpage-head-copy-warn]].

mediawiki