docker.sh doesn't need an extension and could have a more descriptive name

[almereyda]

Currently docker.sh is the name of the central provision script.
Why not call it provision, metamaps or deploy and omit the file extension completely?

The docs would then read:

$ ./metamaps prepare
$ ./metamaps build
$ ./metamaps run db
$ ./metamaps run mm // this job's name could also be web instead
$ ./metamaps seed

Maybe just cosmetical, but due to the high quality of the README, I can imagine it being improved even further.

[ds0nt]

Thanks. Will do.