Part of #33833.

See the Home link in the sidebar on the left:

https://c99c2801a6174e5c8ac573ca5d53d98dc914f4d8--sagemath-tobias.netlify.app/tutorial/index.html

and

https://c99c2801a6174e5c8ac573ca5d53d98dc914f4d8--sagemath-tobias.netlify.app/tutorial/tour_algebra.html

and compare with previous

https://73e5aa3fbbec2d751a47064c14479fc0d55c3de9--sagemath-tobias.netlify.app/tutorial/index.html

Depends on #34252

Component: documentation

Author: Kwankyu Lee

Branch/Commit: c99c280

Reviewer: Matthias Koeppe

Issue created by migration from https://trac.sagemath.org/ticket/34267