Improve the README

[fpgmaas]

PR Checklist

• [ ] A description of the changes is added to the description of this PR.
• [ ] If there is a related issue, make sure it is linked to this PR.
• [ ] If you've fixed a bug or added code that should be tested, add tests!
• [ ] Documentation in docs is updated

Description of changes

[codecov-commenter]

Codecov Report

Merging #75 (6f0a112) into main (571b6eb) will not change coverage. The diff coverage is n/a.

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@@          Coverage Diff          @@
##            main     #75   +/-   ##
=====================================
  Coverage   0.00%   0.00%           
=====================================
  Files          1       1           
  Lines          5       5           
=====================================
  Misses         5       5           

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