Reduce Docstring: Update with note on using dictionary outputs

[dougbrn]

resolves #106. Partially addresses lincc-frameworks/nested-dask#27 as well.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.76%. Comparing base (d9c2e6e) to head (93571af).
Report is 50 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #107   +/-   ##
=======================================
  Coverage   98.76%   98.76%           
=======================================
  Files          15       15           
  Lines         894      894           
=======================================
  Hits          883      883           
  Misses         11       11           

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[github-actions]

Before [d9c2e6e]	After [167e08b]	Ratio	Benchmark (Parameter)
31.3±2ms	32.5±2ms	1.04	benchmarks.AssignSingleDfToNestedSeries.time_run
255M	260M	1.02	benchmarks.AssignSingleDfToNestedSeries.peakmem_run
6.34±0.07ms	6.49±0.1ms	1.02	benchmarks.NestedFrameQuery.time_run
87.6M	88.3M	1.01	benchmarks.NestedFrameQuery.peakmem_run
84M	84M	1	benchmarks.NestedFrameAddNested.peakmem_run
9.38±0.1ms	9.35±0.2ms	1	benchmarks.NestedFrameAddNested.time_run
87.2M	87.2M	1	benchmarks.NestedFrameReduce.peakmem_run
279M	279M	1	benchmarks.ReassignHalfOfNestedSeries.peakmem_run
1.05±0.01ms	1.03±0.01ms	0.98	benchmarks.NestedFrameReduce.time_run
63.5±1ms	60.9±4ms	0.96	benchmarks.ReassignHalfOfNestedSeries.time_run

Click here to view all benchmarks.

[hombit]

Looks great, thank you