Various charter updates

[hober]

Since the group launch, we've received a whole bunch of feedback on the group's charter. We've recently updated the charter based on this feedback.

You can find a summary of the interesting changes below. There were also various typos, small fixes, and other minor changes. See the commit for the full diff.

We'll leave this announcement up for a week and will discuss it on the next call.

Process updates

• The charter now documents the existing process of how proposals get made. (This was previously documented in our proposals repo.)
• The charter spells out more of the day-to-day responsibilities of the chairs.
• The charter now defines how the chairs formally notify the group of things. This is simply documenting our existing workflow.
• Chairs must notify the group when removing work items.
• We're no longer constrained to a maximum of three chairs.

Terminology updates

• The charter now uses the term "work item" where previously it said "deliverable".

Other updates

• The group's mission now cites the W3C TAG Ethical Web Principles.
• We dropped a sentence that read "Implementation disagreement should not result in implementation-defined behavior or optional features". While it may make sense as a requirement later in the standards process, we probably don't need such a rule up front.