Pull request previews

[scottrigby]

PS, this was noted way back in #27, which I closed because our immediate deploy automation was working. We don't use Netlify for the site but would love deploy previews on pull requests however we do it. May be good to check out https://github.com/marketplace/actions/deploy-pr-preview

[niklasmtj]

This is a cool idea. I was checking out the action you mentioned which seems to be easy to integrate. I'm right now testing it but also found the action made available by GitHub: Deploy GitHub pages site which could also be an idea to use.

I think for the forseeable future we should be fine with your proposed action but we can keep an eye on GitHub's action as well.