Docs: update README docker compose syntax

[woodhull]

The modern syntax for running docker compose is docker compose up not docker-compose up

Type of Change

• Documentation update

[macintushar]

Hey @woodhull, did you make sure this command is working on MacOS because as far as I know, Mac follows docker-compose and linux uses docker compose

[woodhull]

I am using Mac OS. The old v1 syntax has been removed and no longer works in modern versions of docker.

[macintushar]

Oh cool! Let me try it out first. I might make a change so that both commands are there, just incase someone's still using an older version of docker.