Sync cli docs (#1027)

sync cli docs

Co-authored-by: Rich-Harris <[email protected]>

Author: github-actions[bot]

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

@@ -29,6 +29,7 @@ You can select multiple space-separated add-ons from [the list below](#Official-
 
 - `drizzle`
 - `eslint`
+- `sveltekit-adapter`
 - `lucia`
 - `mdsvex`
 - `paraglide`