Add goverance.md for OCM incubation checks.

[xuezhaojun]

Fixes issue: #196

The sections: Decision making, CoC, Steering Committee/Members are new, others are copied from #72

[xuezhaojun]

/assign @qiujian16

[qiujian16]

/assign @mikeshng

[mikeshng]

Thank you for taking the time and writing this! I am ok with everything that is stated here. Just some nits.

[openshift-ci]

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[haoqing0110]

How do we define subprojects here? Based on the CNCF incubation checkbox:

If the project has subprojects: subproject leadership, contribution, maturity status documented, including add/remove process.

So, Registration, Work, Scheduling, Operator might not be the Subprojects, and we should list addon-framework, sdk-go and clusteradm here.

What do you think?

[haoqing0110]

And refer to the example in https://github.com/cncf/toc/blob/main/projects/cubefs/cubefs-graduation-dd.md?plain=1#L213, the below governance template should be added to each subproject:

Governance

• < subproject-name > is a sub-project of the OCM main project, complying with the rules of OCM main projects.
• < subproject-name > does not have independent leadership, adopting the same leadership strategy as the OCM main project.
• Contributions to < subproject-name > are equivalent to contributions to the main project and can be used as a basis for community role promotion.

[xuezhaojun]

That's a good question, we should discuss this in the incubation meeting.