feat(gatsby-plugin-subfont): Make async, add configurable option

[palindrom615]

Description

Add gatsby-plugin-subfont configurable option feature
Update subfont version (Maybe issue #16840?)

Documentation

see: packages/gatsby-plugin-subfont/README.md

Related Issues

Related to #16840

[laurieontech]

Thanks for the PR! I'll let core chime in on the technical aspects, but for the README I'd love to see explanations of what each option controls and what they default to.

[palindrom615]

@laurieontech Thanks for the comment. I added an explanation for configurable options in README.

[pvdz]

Besides other comments, this changes the plugin from sync to async. I think that warrants a major bump, not a minor bump. But I'll discuss that to see what other people think.

[pvdz]

Yeah please do a major rather than a minor bump

[palindrom615]

I've just bumped up major version.

[laurieontech]

Thanks for the README improvements! Looks all good from a learning perspective.

[wardpeet]

Looks good, thanks for updating! I'll publish when github is green

[gatsbot]

Holy buckets, @palindrom615 — we just merged your PR to Gatsby! 💪💜

Gatsby is built by awesome people like you. Let us say “thanks” in two ways:

1. We’d like to send you some Gatsby swag. As a token of our appreciation, you can go to the Gatsby Swag Store and log in with your GitHub account to get a coupon code good for one free piece of swag. We’ve got Gatsby t-shirts, stickers, hats, scrunchies, and much more. (You can also unlock even more free swag with 5 contributions — wink wink nudge nudge.) See gatsby.dev/swag for details.
2. We just invited you to join the Gatsby organization on GitHub. This will add you to our team of maintainers. Accept the invite by visiting https://github.com/orgs/gatsbyjs/invitation. By joining the team, you’ll be able to label issues, review pull requests, and merge approved pull requests.

If there’s anything we can do to help, please don’t hesitate to reach out to us: tweet at @gatsbyjs and we’ll come a-runnin’.

Thanks again!

[wardpeet]

Published in gatsby-plugin-subfont@2.0.0