add pyproject description for PyPI

[dougbrn]

Resolves #172

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.43%. Comparing base (58ff091) to head (bc7b0ee).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #184   +/-   ##
=======================================
  Coverage   99.43%   99.43%           
=======================================
  Files          13       13           
  Lines        1071     1071           
=======================================
  Hits         1065     1065           
  Misses          6        6           

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[github-actions]

Before [58ff091] <v0.3.3>	After [1ef17ef]	Ratio	Benchmark (Parameter)
1.24±0.01ms	1.27±0.01ms	1.02	benchmarks.NestedFrameReduce.time_run
8.70±0.02ms	8.74±0.03ms	1.01	benchmarks.NestedFrameAddNested.time_run
268M	268M	1	benchmarks.AssignSingleDfToNestedSeries.peakmem_run
91M	91.1M	1	benchmarks.NestedFrameAddNested.peakmem_run
95.7M	95.8M	1	benchmarks.NestedFrameQuery.peakmem_run
11.0±0.06ms	11.1±0.3ms	1	benchmarks.NestedFrameQuery.time_run
94.7M	94.8M	1	benchmarks.NestedFrameReduce.peakmem_run
288M	288M	1	benchmarks.ReassignHalfOfNestedSeries.peakmem_run
31.0±6ms	30.0±7ms	0.97	benchmarks.ReassignHalfOfNestedSeries.time_run
22.8±0.6ms	21.9±0.2ms	0.96	benchmarks.AssignSingleDfToNestedSeries.time_run

Click here to view all benchmarks.