Update preliminary deployment steps in README

Signed-off-by: Lilly Rose Berner <[email protected]>

Author: LostLuma

echo/README.md

@@ -3,5 +3,10 @@
 Run development environment:
 
 ```sh
-PROFILE=dev sh -c 'docker compose up --watch'
+cp example.config.json config.json
+vim config.json # Edit to your liking
+
+PROFILE=dev sh -c 'docker compose up --build --watch'
 ```
+
+To run a production-like setup instead run `docker compose up`.