Elaborate a little bit about the automatic release process.

[NodeGuy]

Closes #1116

Description:

It turns out the release process is already well-documented! This PR adds a little bit of elaboration.

---

• Added entries in CHANGELOG.md with issue # and GitHub username
• Reviewed Files changed in the github PR explorer

[codecov]

Codecov Report

Merging #1557 into develop will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop    #1557   +/-   ##
========================================
  Coverage    96.52%   96.52%           
========================================
  Files           99       99           
  Lines         1872     1872           
  Branches        92       92           
========================================
  Hits          1807     1807           
  Misses          55       55           
  Partials        10       10

[fedekunze]

LGTM. Can you also change:

**TODO:** _Work on this process, automate as much as possible_
for
> **Note:** This is a work in progress

and delete the TODO in ### TODO: Signing Builds + add a WIP note ?

[faboweb]

argh, to quick to merge. sorry at @fedekunze