Edit to Community Publishing Platforms proposal

[Justin W. Flory (he/him)]

Hi all,

Per feedback in the proposal Pull Request, I added a new commit with a
clarification to the reporting process and working with Platform
moderators first:

https://pagure.io/Fedora-Council/council-docs/c/c1edc2492ea0add9402adeaf416e...

More details and context in the commit message.