add workflow

[Rich-Harris]

This is supposed to trigger a preview deployment whenever there's a PR that updates the docs. Only way to test it is to merge it and make a PR with an innocuous change

[changeset-bot]

⚠️ No Changeset found

Latest commit: 3ee365e

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

[Rich-Harris]

Hmm. The actual URL is this https://svelte-dev-git-preview-clisveltejsdocs-preview-cr-c42404-svelte.vercel.app/

Back to the drawing board

[Rich-Harris]

preview: https://svelte-dev-git-preview-cli-264-svelte.vercel.app/

this is an automated message