Glitch found in "Adding Images to your Website."

I tried searching the forum to see if anybody saw this and couldn’t find anything.

This occurred while I was on “Adding images to your website”, It seems like this extra code appears when I leave the ‘alt’ tag open. Not an impacting problem but I didn’t know if anyone else would find this interesting.

Linux Mint 18 xcfe
Chrome Version 67.0.3396.99 (Official Build) (64-bit)

Bugs should always be reported as GitHub Issues. Whenever reporting a bug, please check first that there isn’t already an issue for it and provide as much detail as possible.