Publish task list for Chairs onboarding and transition

[ChristopherA]

Based on #242 there has been some loss of information when new w3c-ccg Chairs are onboarded, and old chairs leave.

This is a tasklist for writing , followed by another tasklist of what it might look include:

Create a chair transition document

• Where, in /Community or in an issue that is copied and checked off after each transition?
• Docs needed for W3C.org page details, I've forgotten.
• What is the policy for GitHub changes? I (@ChristopherA) fortunately still have all of my admin privs for the whole community, but should I? Maybe I should be moved community-wide to a lower level, and only give me admin or maintainer for specific repos.

Chair Transitions Task List (draft):

• Transition W3C details
  • Am existing chair logs in to W3C site, goes to membership section, and changes the membership status of new chairs to be a chairperson.
  • Once that change has been confirmed (and the new chairperson can login), then any departing chairs should be removed from list.
  • Cleanup any W3C org details
• Github permissions need to be changed
  • Who changes them? How?
  • The static GitHub home page should list current chairs, update it.
• Other permissions may be required (Jitsi?)
• Schedule calls with old chairs to catch up on history.

[ChristopherA]

@kimdhamilton has a wealth of knowledge about how the /meeting repo's tools worked. Though some has changed, she may have some more ideas for 👆🏼.

[wip-abramson]

This feels like something we need to follow up on @man4prez