Create supporter logo/badge

[M-J-Robbins]

After the logo is finalized, it would be good to create some "badges" that people can add to their website to show their support.

Similar to these ones
https://www.w3.org/Consortium/Legal/logo-usage-20000308#org-logos
https://www.w3.org/WAI/standards-guidelines/wcag/conformance-logos/

We'd also need some guidelines on usage.

[M-J-Robbins]

Some other inspiration
https://www.w3.org/html/logo/
https://www.w3.org/WAI/standards-guidelines/wcag/conformance-logos/
https://docs.opencollective.com/help/financial-contributors/website-badge

[M-J-Robbins]

cc/ @megbosh

[M-J-Robbins]

Brought up today on the members call was the idea that we could also provide a short comment that people could include in their email code. Email devs spend a lot of time looking at other people's code so a comment like this would get noticed.

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