Editorial: fix 'in parallel' usage

[marcoscaceres]

Closes #126

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[marcoscaceres]

Hiding whitespace makes this easier to review: https://github.com/w3c/geolocation-api/pull/129/files?diff=unified&w=1

[reillyeon]

Please resolve the merge conflicts and I will merge this change.

[marcoscaceres]

Fixed! thanks for the speedy review!