[wg/service-workers] "Adopted Specification"

[frivoal]

Sorry for not noticing this earlier.

In section 2.2, the current wording of the service workers charter uses "Adopted specification" to link to Community Group reports it plans to take up. While it's good to link to those, the term "Adopted specification" is very close to "Adopted Draft", which is a term defined by the Process to refer specifically to Working Drafts or other Recommendation-track documents adopted from another Working Group. As the these have different patent policy implications, I think it would be better not to use terminology that is so close and might cause confusion. Something like this would seem fine:

Draft state: < href="…">Community Group Report</a> from WICG

[plehegar]

@ylafon , apparently, we missed this issue when the Group was recharter earlier in the year :(