acl.n3 has a number of minor English errors

[TallTed]

All human-facing text in acl.n3 needs a review by an English speaker with native-level fluency. There are a number of minor idiomatic and/or grammatical errors (things like including a "to" in a verb conjugation where it doesn't belong) in the current texts. (I noticed them in adjacent text when skimming a recent PR after it was merged, which I hadn't read over before the merge or I'd have suggested the fixes there.)