In the old versions of Phoenix “hexdocs” there was a section called “BONUS GUIDES” with some seemingly useful pieces in it. Like for example this one:
https://hexdocs.pm/phoenix/1.3.0-rc.0/file_uploads.html
These seem to be gone from later versions of the docs and search [file] uploads doesn’t return anything useful. What was wrong with those guides? And is there a replacement somewhere?