Stylable + Shelley with Gatsby

Typescript starter for Gatsby including Jest setup.

In terms of getting stylable going on existing Gatsby setups you will need:

• Add the stylable plugin to your gatsby-node.js

• If you are working with Typescript you will need to define a global module declaration for the @stylable/runtime.

• Install VSCode extension "stylable-intelligence"

https://github.com/gatsbyjs/gatsby/issues/11072