feat: Host rustdoc of master on GitHub pages

[umgefahren]

Description

This PR hosts the documentation of the current master branch on GitHub Pages. The URL should be: https://libp2p.github.io/rust-libp2p

I tested the configuration on my repo and it works. You can see the result under: https://umgefahren.github.io/rust-libp2p

Notes

This PR requires a change of settings in the pages tab. The screenshot below shows the correct configuration:

Links to any relevant issues

Solving #3125. Sorry for opening so many issues and then immediately providing PRs.

Open Questions

Is the community happy with this.

[thomaseizinger]

LGTM!

I think the changes to the GitHub pages configuration will need to be made over here: https://github.com/libp2p/github-mgmt/blob/0e08ed66ddd586d3f31f98d1aa4cb54e3795737e/github/libp2p.yml#L3962

I got no idea what the correct config looks like. @galargh Can you help here?

[galargh]

LGTM!

I think the changes to the GitHub pages configuration will need to be made over here: https://github.com/libp2p/github-mgmt/blob/0e08ed66ddd586d3f31f98d1aa4cb54e3795737e/github/libp2p.yml#L3962

I got no idea what the correct config looks like. @galargh Can you help here?

Sadly, terraform provider (and because of that - GitHub Management) doesn't support GitHub Actions as a Pages source yet - https://registry.terraform.io/providers/integrations/github/latest/docs/resources/repository#github-pages-configuration.

I made the required changes through the UI in this repo. You should be good to proceed.

[umgefahren]

What is missing here? It should be ready to merge from my POV

[mxinden]

Only waiting for a green CI at this point. Once green mergify should merge automatically.

Not sure why CI is failing. Will need to take a look.

[mxinden]

libp2p-dcutr and libp2p-relay changes seem unrelated. Discussion is here #2647 (comment).

Moving forward here.

[mxinden]

Docs page is fancy. Thanks @umgefahren.

[mxinden]

In case you want to draw more attention to it, referencing the page next to the already referenced libp2p docs in the main README.md would be a good idea.