Page content is wider than view window

If I am reading the git book or manual (https://git-scm.com/), and zoom in, and/or have browser sized to a fraction of the screen, I cannot see all the text, and have to horizontally scroll back and forth to read at that zoom.

This may also be for smaller laptop screens, so those with larger desktop monitors may not see this often.

Can site designer consider this in layout?

For example, I find it easier to read manuals at https://gitirc.eu/git.html.

(This is unfortunately a very common problem on websites, including github's help pages.)

Thank you,

-- Brady