Hey there! Thanks so much for wanting to help out. :)
Are you using the visual editor ("edit" option) or the "edit source" option when editing? Unfortunately, it looks like the visual editor might be bugging up.
Try clicking "edit source" at the top of the article instead. If that doesn't work, you can email me the information (firstname.lastname@example.org) you want to share or even just leave a comment on my profile. What pages are you trying to edit exactly?