docs: fix incorrect command for Docker Compose

README.md

@@ -60,12 +60,12 @@ docker build --no-cache -t solder -f ./docker/Dockerfile .
 
 Run the setup to prepare your instance. You might need to modify `start.sh` to disable setting a new app key if you already have one. Make sure not to run this more than once unless you want a new app key.
 ```bash
-docker-compose -f compose-setup.yml up setup
+docker compose -f compose-setup.yml up setup
 ```
 
 Finally, you can turn on your instance of Solder.
 ```bash
-docker-compose up -d --remove-orphans
+docker compose up -d --remove-orphans
 ```
 
 (The `--remove-orphans` flag is necessary to remove the container used in the setup.)