Add more items to the FAQ

[jtpio]

It could be useful to add more sections to the existing FAQ: https://jupyter-releaser.readthedocs.io/en/latest/reference/faq.html. To answer common questions people may have.

For example:

• use the following to automatically publish the npm package:

"publishConfig": {
    "access": "public"
},

• mention the check-python trick for Python monorepos: Allow skipping pip install step in check-python #499
• more?