Update README.md

Suggest ways for PMCs/ podlings to adopt their Code of Conduct
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 4) Provide it as a template on community.apache.org as a proposed/suggested template.
 
+5) Consider how to get projects and podlings to adopt their own Code of Conduct, once the default has been reviewed. Perhaps:
+   a) notify all PMCs that the new default is available and encourage them to adopt it or write their own
+   b) add adoption of Code of Conduct to podling Maturity Model
+   
+
 ## Notes
 
 [1] By outcome-focused, what I mean is that it has a specific task, which, upon completion, the WG would dissolve