Further work on the deployment front

Hello Paolo!

Excellent work with the deployment sketch, I just tried it locally and works very well, good work!

Now, I've briefly modified `README.md` and left a bit of `TODO` there, that should be the next steps. Tomorrow I'll go through the API post, study it a bit on my own and give some feedback.

Thanks and keep up, good job indeed Paolo! :+1: 

PD: Mind all the other changes not pertaining to `README.md`, it's just a merge from upstream...

@satra, you might be interested in testing the deployment on your own, although it lacks ElasticSearch, it does work very well!