Add quick start, change defaults.

README.md

@@ -1,5 +1,18 @@
 This is still a work-in-progress and some things may not work, notably Autumn does not auto-create S3 buckets yet and the app points to api.revolt.chat by default.
 
+## Quick Start
+
+This repository provides reasonable defaults, so you can immediately get started with it on your local machine.
+
+> ⚠️ Not recommended for production, see below for full guide.
+
+```bash
+git clone https://gitlab.insrt.uk/revolt/self-hosted revolt
+cd revolt
+cp .env.example .env
+docker-compose up -d
+```
+
 ## Usage
 
 Copy the `.env` file and edit according to your needs.
@@ -13,3 +26,9 @@ Then bring up REVOLT:
 ```bash
 docker-compose up -d
 ```
+
+## To-Do
+
+- Interactive setup.
+- Add Caddy.
+- Add voso.