docs: add a link to guild features

[JustaSqu1d]

Summary

1. The current list is missing newer features.
2. Let another source update these changes instead.

Information

• This PR fixes an issue.
• This PR adds something new (e.g. new method or parameters).
• This PR is a breaking change (e.g. methods or parameters removed/renamed).
• This PR is not a code change (e.g. documentation, README, typehinting,
  examples, ...).

Checklist

• I have searched the open pull requests for duplicates.
• If code changes were made then they have been tested.
  • I have updated the documentation to reflect the changes.
• If type: ignore comments were used, a comment is also left explaining why.
• I have updated the changelog to include these changes.

[JustaSqu1d]

I don't think this requires a changelog entry.

[Lulalaby]

Let another source update these changes instead.

Yeah that's on me then again lol

[pullapprove4]

Please add a changelog entry