Svelte library template adds the `create-svelte` readme

[hyunbinseo]

pnpm dlx sv create .     
# ┌  Welcome to the Svelte CLI! (v0.6.26)
# │
# ◇  Which template would you like?
# │  Svelte library
# │
# ◇  Add type checking with TypeScript?
# │  Yes, using TypeScript syntax
# │
# ◆  Project created

This adds the following outdated file:

# create-svelte

Everything you need to build a Svelte library, powered by [`create-svelte`](https://github.com/sveltejs/kit/tree/main/packages/create-svelte).

Read more about creating a library [in the docs](https://svelte.dev/docs/kit/packaging).