Add missing docker-compose in homebrew command

Author: fsalvi

README.md

@@ -20,7 +20,7 @@ Make sure you are in the root directory of the cloned repository.
 ### With `Docker Compose`:
 
 You need to have [Docker Engine](https://docs.docker.com/engine/) and [Docker Compose](https://docs.docker.com/compose/) installed on your machine.
-Under macOS (Intel or Apple silicon), instead of installing [Docker Desktop](https://docs.docker.com/desktop/) you can also use [HomeBrew](https://brew.sh/) with [Colima](https://github.com/abiosoft/colima): `brew install colima docker`.  
+Under macOS (Intel or Apple silicon), instead of installing [Docker Desktop](https://docs.docker.com/desktop/) you can also use [HomeBrew](https://brew.sh/) with [Colima](https://github.com/abiosoft/colima): `brew install colima docker docker-compose`.  
 UID and GID environment variables are needed to avoid docker from writing files as root in your directory.
 
 ```