Update units: mozmm removed + capitalize Q (#981)
Update units: mozmm removed + capitalize Q (#981)

* mozmm removed in Firefox 59

* Also capitalize `Q` unit

* Fix description

chrisdavidmills/browser-compat-data,teoli2003/browser-compat-data,mdn/browser-compat-data,mdn/browser-compat-data,chrisdavidmills/browser-compat-data