Update README.rst

[lewisblake]

Change Summary

Related issue number

Checklist

• Start with a draft-PR
• The PR title is a good summary of the changes
• PR is set to AeroTools and a tentative milestone
• Documentation reflects the changes where applicable
• Tests for the changes exist where applicable
• Tests pass locally
• Tests pass on CI
• At least 1 reviewer is selected
• Make PR ready to review

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 78.50%. Comparing base (28a7cab) to head (9300b96).
Report is 315 commits behind head on main-dev.

Additional details and impacted files

@@            Coverage Diff            @@
##           main-dev    #1376   +/-   ##
=========================================
  Coverage     78.50%   78.50%           
=========================================
  Files           136      136           
  Lines         20860    20860           
=========================================
  Hits          16377    16377           
  Misses         4483     4483           

Flag	Coverage Δ
unittests	78.50% <ø> (ø)

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[thorbjoernl]

LGTM