merge readmes

Author: benmccann

apps/svelte.dev/README.md

@@ -14,6 +14,15 @@ The tutorial, blog and examples are maintained within this repository.
 
 ## Development
 
+### Database setup
+
+Login to [Supabase](https://supabase.com) and create a database. Once done, you should be on your database's dashboard. Duplicate the `.env.example` file and rename it to `.env.local`, and set these environment variables:
+
+- `SUPABASE_URL`: The config URL
+- `SUPABASE_KEY`: The public API key
+
+Then, navigate to your database's "SQL Editor", click on "New query", and paste in [setup.sql](./setup.sql). Run this SQL to seed the database and you're good to go.
+
 ### Tutorial
 
 The tutorial consists of two technically different parts: The Svelte tutorial and the SvelteKit tutorial. The SvelteKit tutorial uses [WebContainers](https://webcontainers.io/) under the hood in order to boot up a Node runtime in the browser. The Svelte tutorial uses Rollup in a web worker - it does not use WebContainers because a simple web worker is both faster and more reliable (there are known issues with iOS mobile).