Update README.md with instructions for Docker setup
Update README.md with instructions for Docker setup

lcastillo0136/opensourcepos,onyema3/opensourcepos,overk1ll/opensourcepos,overk1ll/opensourcepos,onyema3/opensourcepos,overk1ll/opensourcepos,overk1ll/opensourcepos,lcastillo0136/opensourcepos,onyema3/opensourcepos,onyema3/opensourcepos,lcastillo0136/opensourcepos