Minor changes to correct grammatical errors and awkward wording

[nlharris]

These minor changes should not affect the meaning.

[nlharris]

I need one more approval! @HLWiencko @kipkurui @cjfields @gedankenstuecke

I can't @ iddo because he's not a member of https://github.com/orgs/OBF/teams/board, and I don't seem to have admin rights to add him there.

[peterjc]

I've invited @idoerg to the board team, that's was probably an oversight in our on-boarding process