Adjust language for getting patent policy comittments from non-participants

[frivoal]

This makes sure that we seek commitments to the patent policy from the the people who are originating the substance of the change being offered, rather than from those who are doing the mechanical work of offering them.

Note: This aligns with current Team practices and existing tooling.

Addresses #903

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[TallTed]

Please correct non paticipants in title, to non-participants.

[TallTed]

@frivoal — The title now has the hyphen, but still has paticipants (no r), instead of participants.