* new readme structure
* add adopters file
* add microsoft sponsorship
* add reference to adopter file
* add gopher slack invite link
* slightly rephrase nightly image section
* add sponsor request for action
* better formatting for contributor wall
* add longer wait time for stale PRs and issues and allow for exemption through bug and high-priority labels
* apply review suggestion
Co-authored-by: Joel Speed <Joel.speed@hotmail.co.uk>
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Co-authored-by: Joel Speed <Joel.speed@hotmail.co.uk>
