[PCG] Updated MAIN Publishing CG meeting calendar for 2021 (Boston Time)

Hi All


Since we are having more members joining CG here I sent out updated 
meeting invitation for EST time zone meeting.

The meeting is recurring once per 4 weeks. Apologize if I told many 
members the meeting is every 2nd week of each month.


I will also send out another meeting invitation for Asia-Pacific time zone.


NOTE: For members in epub3 CG but have not joined publishing CG yet 
please join publishing CG ASAP.

We will stop CC email to epub3 CG ML (public-epub3@w3.org) soon.


Thanks,

Zheng