chore: make html-proofer ignore software's description (#1205)
chore: make html-proofer ignore software's description (#1205)

Software's description comes from external publiccode.yml files
so there might be broken links out of our control making our CI pipeline fail.

In case that happens, it's still a broken link published on
developers.italia.it, so we'll have to find a better solution in the
future.
italia/developers.italia.it,italia/developers.italia.it,italia/developers.italia.it,italia/developers.italia.it