CircleCI artifacts appear to be broken -- switch to netlify?

[sappelhoff]

see the CI checks, e.g.: https://output.circle-artifacts.com/output/job/66c07efe-69c5-4166-953b-378a98713e4a/artifacts/0/_site/index.html

the job/66c07efe-69c5-4166-953b-378a98713e4a seems to be the problem.

[sappelhoff]

I think we should switch to deploy previews from netlify: https://docs.netlify.com/site-deploys/deploy-previews/

for two reasons:

• no idea how to solve the circleci issue
• that still wouldn't solve the fact that CSS isn't linked if no jekyll serve is called (this is different to static html deployed, e.g., via sphinx, where everything works without any active "serving")

see also:

• CI: iterate with circleci until it works bids-apps/bids-apps.github.io#58 (comment)

[sappelhoff]

This also seems like a nice solution: https://github.com/rossjrw/pr-preview-action

alas:

This Action does not currently support deploying previews for PRs from forks, but will do so in rossjrw/pr-preview-action#6.