Add H1 heading at the beginning of page content

Originally created by @pzajda on #7506 (Redmine)

Actually, there are headers in the content itself.
It could make the navigation easier if there was a level 1 header (h1 in HTML) at the beginning of the content of each pages, and why not, at the top of the menu and before the footer.

Related issues

Related to #7508 (closed)

Edited May 15, 2020 by pzajda

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information