rmv: community add-ons docs (back soon)

[jycouet]

Description

I will add docs again in a second in another PR to ease the review!

Checklist

• Update snapshots (if applicable)
• Add a changeset (if applicable)
• Allow maintainers to edit this PR
• I care about what I'm doing, no matter the tool I use (Notepad, Sublime, VSCode, AI...)

[changeset-bot]

⚠️ No Changeset found

Latest commit: 6491cbc

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[svelte-docs-bot]

Preview: https://svelte-dev-git-preview-cli-1019-svelte.vercel.app/

[pkg-pr-new]

Open in StackBlitz

npx https://pkg.pr.new/svelte-migrate@1019

npx https://pkg.pr.new/sv@1019

npx https://pkg.pr.new/@sveltejs/sv-utils@1019

commit: 6491cbc