Needs updated documentation

[kushaldas]

We need updated documentation for the project, including details like:

How to setup from scratch?

We need one example setup with full explanation of various configurations with assumption that standard TLS certificates for that domain are from Let's Encrypt and are available on /etc/letsencrypt.

This part of the documentation should also any related openssl commands to create any related certificate required for the application.

Explanation of directories if mounted from the host inside of the container

We need examples and explanation for the directories which needs (or used on production) to be mounted in the container from the host machine.