v0.6.0

The editor is on npm.

• On npm. npm install --save-dev simple-git-cms, then npx simple-git-cms install public/editor: the editor comes already built, and upgrading is npm update and installing
  again. The preview client and the rehype plugin are imported from the package
  (simple-git-cms/preview-client, simple-git-cms/rehype-figures) instead of copied in. After
  this first one, releases are published from GitHub Actions, with a provenance statement linking
  each to the commit it was built from.

npm: https://www.npmjs.com/package/simple-git-cms