Sustainability considerations for Wagtail sites

[thibaudcolas]

Summary

R&D and documentation programme to help Wagtail users build websites that have a lower climate impact.

Intended Outcome

• Sustainability landing page on wagtail.org
• Sustainability considerations documentation page in docs.wagtail.org
• Green Web Foundation R&D and collaboration (see Greener coding - Making a 'gold' reference configuration with the Wagtail bakery app #8843)
• Looking for sponsorships / grant funding in the sustainability space

[thibaudcolas]

Will now close to make way for the next release. All of the above has happened except for:

Sustainability considerations documentation page in docs.wagtail.org

…which is scheduled for a first draft this week.

• https://wagtail.org/sustainability/
• https://wagtail.org/blog/estimating-wagtail-websites-emissions/
• https://wagtail.org/blog/going-green-with-google-summer-of-code/

[thibaudcolas]

Further progress: #64.