DOC: Add a Change Log

[davidhassell]

Description

It would be nice to start having kind of a changelog or whats-new within the docs. That way users can observe recent changes directly from the documentation without having to go over the individual commits.

Closes #87

Before you get started

• ☝ Create an issue to discuss what you are going to do

Checklist

• This pull request has a descriptive title and labels
• This pull request has a minimal description (most was discussed in the issue, but a two-liner description is still desirable)
• Unit tests have been added (if codecov test fails)
• Any changed dependencies have been added or removed correctly (if need be)
• If you are working on the documentation, please ensure the current build passes
• All tests pass

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 72.06%. Comparing base (a2d8433) to head (8d4804c).
⚠️ Report is 204 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #90   +/-   ##
=======================================
  Coverage   72.06%   72.06%           
=======================================
  Files          11       11           
  Lines        2434     2434           
  Branches      368      368           
=======================================
  Hits         1754     1754           
  Misses        582      582           
  Partials       98       98           

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[valeriupredoi]

looks spiffy, and very useful indeed, many thanks @davidhassell and @kmuehlbauer 🍻