Add Change Log / History To Documentation

[hf-krechan]

I came across Hatch's documentation while cleaning up and found their approach quite elegant.
They use a small custom script that effectively pulls the automatic changelog from GitHub for each new release and adds it to the existing changelog (they call it history).

Here are the results: Hatch History and the script: Validate History Script.

The crucial line in the CI can be found here: CI Line. I just wanted to note this here.