Add "How-to release" information

[filfreire]

@vooolll kindly consider:

• adding clear "how-to" release information on documentation (for example, as a README section)
• creating a follow-up issue to automate release process, for example you could use a Devops bot like Rultor and define the release routine in a script.

[filfreire]

@vooolll more documentation on the mentioned bot can be found here.

[vooolll]

@filfreire yep, I have found it. I need to automate releases