Repo management update

### Context

I see this was forked originally from https://github.com/utoronto-2i2c/homepage (which is now archived).   Should remove the fork so it is clear that this repo lives independently from that historical repo?

Also, there is both a `main` and a `master` branch -- we should prune one of them for clarity.

### Proposal

_No response_

### Updates and actions

_No response_