Sync cli docs (sveltejs#1533)

sync cli docs

Co-authored-by: svelte-docs-bot[bot] <196124396+svelte-docs-bot[bot]@users.noreply.github.com>

Author: 2 people

apps/svelte.dev/content/docs/cli/20-commands/10-sv-create.md

@@ -13,6 +13,16 @@ npx sv create [options] [path]
 
 ## Options
 
+### `--from-playground <url>`
+
+Create a SvelteKit project from a Svelte Playground URL. This downloads all playground files, detects external dependencies, and sets up a complete SvelteKit project structure with everything ready to go.
+
+Example:
+
+```sh
+npx sv create --from-playground=https://svelte.dev/playground/hello-world
+```
+
 ### `--template <name>`
 
 Which project template to use: