Create a "how to" section in the documentation

I think that our documentation is pretty good for experienced Rails developers, who know the conventions well and just want to get going. However I feel that it falls short for those who are a bit newer to the framework. Many things are left unsaid because they are implied in the conventions of the community. Newcomers are less aware of these and will struggle.

A way to solve this could be to create a "how to" section in our documentation, similar to the one offered by Devise: https://github.com/heartcombo/devise/wiki/How-Tos. These are some initial ideas of articles there, taken from actual questions from users:

• How to do file processing / parsing?
  • https://github.com/thoughtbot/administrate/issues/1756
• How to override only specific parts of templates.
  • https://github.com/thoughtbot/administrate/issues/1661
  • https://github.com/thoughtbot/administrate/issues/1315
• How to use Administrate with an api_only Rails app.
  • https://github.com/thoughtbot/administrate/issues/1755
• How to add a button to export data to CSV.
  • https://github.com/thoughtbot/administrate/issues/1520
• How to add functionality to import data from CSV.
  • https://stackoverflow.com/questions/66247220/best-way-to-do-csv-seed-file-upload-to-rails-repo-through-administrate
• How to add a "create and add another" button in the new page.
• How to add authentication and make it work with the existing authorization facility.
  • https://github.com/thoughtbot/administrate/pull/1998#issuecomment-907576069
• Create a variation of Field::HasOne that only links to the associated record, instead of displaying it on the show page.
  • https://github.com/thoughtbot/administrate/issues/1877
• How to edit users managed by Devise
  • https://github.com/thoughtbot/administrate/issues/495

Done

• How to hide dashboards from the sidebar.
  • https://github.com/thoughtbot/administrate/issues/1587
  • ✔ Done at https://github.com/thoughtbot/administrate/pull/1781
• How to provide custom search logic.
  • https://github.com/thoughtbot/administrate/pull/2096
  • ✔ Done at https://github.com/thoughtbot/administrate/pull/2153
• How to scope HasMany tables.
  • https://stackoverflow.com/questions/59059701/rails-administrate-customize-has-many
  • ✔ Done at https://github.com/thoughtbot/administrate/pull/2243

For clarity, I would add this section to the current documentation files, as opposed to a GitHub wiki like Devise does.