Implement Process 2021

[plehegar]

• [x] Process 2021 in place (@plehegar)
• [x] supersede Process 2020 (@plehegar)
• [x] Update https://www.w3.org/standards/types (@plehegar) https://github.com/w3c/tr-pages/pull/96
• [ ] Update Process for Busy People (?)
• [x] Backgrounder for Process/PP2021 (@@)
• [x] Transition requirements (@plehegar)
• [x] Pubrules (@deniak, @jennyliang220 )
• [x] IPP pages (new Process) (@deniak)
• [ ] WBS AC forms update: Registries, Statements
• [ ] Echidna support for Registries (@deniak) https://github.com/w3c/echidna/issues/970
• [ ] Publication database and /TR history pages update for Notes/Registries/Discontinued ()
• [x] Templates containing new status/style/SOTD for /TR documents in Registries, Notes, Discontinued (@plehegar ) https://w3c.github.io/tr-design/p2021mockup/
• [x] Draft announcement (@plehegar)
• [x] Send announcement to Members/Chairs/AB/TAG (@koalie)
• [x] Forward announcement to public-w3process@w3.org (@koalie)
• [x] Post homepage news + other promotion (@koalie)
• [ ] Bikeshed update (@plehegar)
• [x] ReSpec update https://github.com/w3c/respec/pull/3848 (@marcoscaceres)
• [x] Update team mail templates (@koalie)
• [ ] Charter creation (@plehegar)
• [x] Charter template (@plehegar)
• [ ] Contact relevant partner orgs to let them know of the updates (team-liaisons?) (NOTE: this is ongoing process in preparation of Process 2021 deployment)

[koalie]

@plehegar could you please "supersede" process 2020 please? (we had this as part of the first todo element but only the first part of it was done; I've made the superseding its own item just now) #kthx!

[plehegar]

done. https://www.w3.org/2020/Process-20200915/