Various editorial nits (#651)

Merging as agreed on today's WG call

* Various editorial nits

* Apply MikeJ's suggestions

Co-authored-by: Michael B. Jones <[email protected]>

* Fix a 'fullfilled' spotted by Dimitar

* Add Dimitar Atanasov Stoikov & Kim Cameron to acknowledgements

* Some further small editorial typo fixes

* Apply Dimitar's suggestions

* Small tweaks based on Dimitar's changes

Clarify that the fallback is an unencrypted response.

Use consistent punctuation in some of the DCQL lists.

* Apply Dimitar's first set of suggestions

from #651 (comment)

Minus a couple of changes are described in:

#651 (comment)

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Co-authored-by: Michael B. Jones <[email protected]>

Author: jogu