Match only once

I added a config that allows to match only once. This does not take upper/lower casing into account. Additionally, I unified the "matches" array it results in nested <span class="glos-term"... because the same value could be replaced mutliple times

This does not yet match across fields

olivier.br → made their first commit to this issue’s fork.

Added to dev branch, thanks for your work

olivier.br → closed merge request !7

Automatically closed - issue fixed for 2 weeks with no activity.