[Recommended] Document how the project makes decisions on leadership, contribution acceptance, requests to the CNCF, and changes to governance or project goals

[terrytangyuan]

[ ] Document how the project makes decisions on leadership, contribution acceptance, requests to the CNCF, and changes to governance or project goals.

The project decisions are discussed in open issues and we use gitvote process to make the final decision.
For example: requests to the CNCF

TODO for KServe team: need evidance in the rules not just examples