Google Sites - Supports PHP: https://developers.g...e.com/sites/faq
I dunno if I would favor anything google over git heh. And I don't know much about them, but I'm sure there's tons of more modern collaborative tools/sites out there that make both of those look like stone tools from the Paleolithic era.
https://geekflare.co...e-coding-tools/
As I told Sam., we'd definitely want a tool that can serve web pages, readmes, etc. complete with images or having to dig through repositories. In other words, user friendly, not just developer friendly.