"donut" should be promoted in en-US

[RetroEdit]

I noticed "donut" was missing from the dictionaries (with the note: level 2 variant [v]), but "donuts" is present (with the note: found in "hacker" list [sl]).

Donut has a "should include" score of four stars (****) based on the Google Books Ngam dataset.

Anecdotally, "donut" is an extremely common variant in American English, perhaps more common than "doughnut".

[kevina]

Donut will be added in next release but only for American English as I think it still considered a spelling error (or at least a lazy spelling) in other English speaking countries.