More rigorously check keycaps/guimenus
More rigorously check keycaps/guimenus

Some authors seem to use them interchangeably. Given that we can check
keycap content reasonably well ... why not check for this?

sknorr/suse-doc-style-checker,sknorr/suse-doc-style-checker,sknorr/suse-doc-style-checker