לא מצליח למצוא עריכת HTML/CSS עבור ערכת הנושא שנבחרה כברירת מחדל

Since this comes up almost every day now, can we put a notice on the page that says something like

:mega: If you want to edit this theme, you must edit it on GitHub

Where the last part is a direct link to the github repo for that theme.

We’re way way past rule of 3 on this one @eviltrout @sam.