docs: add add-on docs

documentation/docs/30-add-ons/05-drizzle.md

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+---
+title: drizzle
+---
+
+## Usage
+
+```bash
+npx sv add drizzle
+```
+
+## Description
+
+[Drizzle ORM](https://orm.drizzle.team/) is a TypeScript ORM offering both relational and SQL-like query APIs, and which is serverless-ready by design.
+Some short description about what drizzle is and what we set up
+
+## Options
+
+### database
+
+Which database variant to use:
+
+- `postgresql` — the most popular open source database
+- `mysql` — another popular open source database
+- `sqlite` — file-based database not requiring a database server
+
+```bash
+npx sv add --drizzle=postgresql
+```
+
+### client
+
+The SQL client to use, depends on `database`:
+
+- For `postgresql`: `postgres.js`, `neon`,
+- For `mysql`: `mysql2`, `planetscale`
+- For `sqlite`: `better-sqlite3`, `libsql`, `turso`
+
+```bash
+npx sv add --drizzle=postgresql,postgres.js
+```
+
+Drizzle is compatible with well over a dozen database drivers. We just offer a few of the most common ones here for simplicity, but if you'd like to use another one you can choose one as a placeholder and swap it out for another after setup by choosing from [Drizzle's full list of compatible drivers](https://orm.drizzle.team/docs/connect-overview#next-steps).
+
+### docker
+
+Whether to add Docker Compose configuration. Only available for [`database`](#Options-database) `postgresql` or `mysql`
+
+- `docker` - generates `docker-compose.yml`
+- `no-docker` - does not generate docker config
+
+```bash
+npx sv add --drizzle=postgresql,postgres.js,docker
+```

documentation/docs/30-add-ons/index.md

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+---
+title: Add-ons
+---