Updated deploy production branch note

[SichengH]

Added notes at the main README file, about how to deploy the production branch of mimic-website.

IP addresses and user names are masked.

[briangow]

Thanks @SichengH! I'm adding a couple of minor points to the file.

[SichengH]

Thanks @SichengH! I'm adding a couple of minor points to the file.

Thanks, @briangow. I've added a second commit based on your reviews.

[alistairewj]

isn't this better for the lcp wiki? that way it's not awkwardly hiding IPs and what not?