Add a deployment section

[facundoolano]

as discussed in macchiato-framework/macchiato-template#4, add a deployment section explaining clustering is needed to take advantage of all the cpu cores in Node.js and suggest using PM2 for that.

I can send a PR for this but I'm not sure what other deployment related information should be included.

[yogthos]

For the most part I was thinking of adapting Luminus docs for macchiato. Take a look at the deployment section, a lot of it should be pretty similar.

[facundoolano]

Sounds good. I can leave the titles to fill later for the things I'm not familiar with. Also I could probably throw in sections for Docker and now.sh since I already tried those with macchiato.

[yogthos]

Good plan, Dockerizing example wouldn't hurt at all. :)