Wrong <gui> and <em> usage...
In one part of the manual "method" lacks <gui></gui>
while "Manual" has it:
https://gitlab.gnome.org/GNOME/gnome-user-docs/blob/master/gnome-help/C/net-manual.page#L63
In another it is capitalized "Method" and has <gui></gui>
but "Manual" now uses <em></em>
:
https://gitlab.gnome.org/GNOME/gnome-user-docs/blob/master/gnome-help/C/net-fixed-ip-address.page#L65