Community Relations: add project management documentation

Why is this change being made?

Document the current status Community Relations team's project management resources and practices to facilitate the work with other teams. Provide visibility on the current boards and labels for assessment and optimization.

How will this merge request impact page speed?

N/A

Does this MR meet the acceptance criteria?

Assign to DRI

• Did you assign this change to the correct DRI of the page or information you are changing?

Conformity

• Added description to this MR explaining the reasons for the proposed change, per say-why-not-just-what