random number 1 by tagline

https://marginalia.wendywainwright.com/

If you go look at my blog just above the tagline there is a number 1 with a line under it. I have NO idea where it came from so I can’t even begin to imagine how to get rid of it. I did manage (god only knows how) to turn my header image into a link to my home page today so maybe it showed up in doing that somehow? If you can help me that would be awesome, please know that my level of understanding is REALLY low so the most basic and clear explanations will be most helpful. thanks!