[Project] Readme standardization

[desteves]

Update all public GitHub repos' README with more information and community benefits.

### Tasks
- [x] Identify list of public repos
- [x] Sort by number of stars
- [x] Develop a checklist
- [x] Develop a template
- [ ] Approve Template
- [ ] Create PRs with the template

Link to the Internal Google Drive Folder

[desteves]

@interurban Are there any additional edits on the readme template?

[interurban]

Closing this one as a duplicate for the source issue: https://github.com/pulumi/marketing/issues/986

[pulumi-bot]

Cannot close issue:

• does not have required labels: kind/

Please fix these problems and try again.