docs: add usage instructions to README

README.md

@@ -1,20 +1,38 @@
 # Simple Status Page
 
-A simple web app that does status checking. Configured through a simple `config.toml`.
+A web app that does status checking. Configured through a simple `config.toml` (or environment variables).
 
-## Structure
+## Usage
+
+Copy the `docker-compose.yml` and `config_example.toml` to a local folder. Rename `config_example.toml` to `config.toml`
+and fill out the configuration. Then run:
+
+```shell
+docker compose up -d
+```
+
+This will pull the latest `redis` and `simple-status-page` images and run them. The status page will be available on port
+`8080`.
+
+It's recommended to run the app behind a reverse proxy that does TLS termination, like [caddy](https://caddyserver.com/).
+
+Configuration can also be done via environmental variables. The env vars take precedence over the config file.
+
+## Development
 
 ### Backend
 
-[Actix Web](https://actix.rs/) with [Redis](https://redis.io/) as a datastore.
+[Actix Web](https://actix.rs/) with [Redis](https://redis.io/) as a datastore. You will need a locally available redis
+instance for development.
 
 ```shell
 cargo run
 ```
 
 ### Frontend
 
-[SvelteKit](https://kit.svelte.dev/) Webapp written in TypeScript.
+[SvelteKit](https://kit.svelte.dev/) Webapp written in TypeScript. Set the `webserver.url` config value to your svelte
+`host:port`, otherwise you will have CORS issues.
 
 ```shell
 pnpm i