NestedSeries documentation

[dougbrn]

Resolves #338

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.19%. Comparing base (cf6d152) to head (5d1f35d).
⚠️ Report is 6 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #339   +/-   ##
=======================================
  Coverage   98.19%   98.19%           
=======================================
  Files          19       19           
  Lines        1830     1833    +3     
=======================================
+ Hits         1797     1800    +3     
  Misses         33       33           

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[github-actions]

Before [cf6d152]	After [e59fbae]	Ratio	Benchmark (Parameter)
884M	1.02G	1.15	benchmarks.ReadFewColumnsS3.peakmem_run
31.7±0.7ms	33.9±1ms	1.07	benchmarks.AssignSingleDfToNestedSeries.time_run
176M	179M	1.02	benchmarks.ReadFewColumnsHTTPS.peakmem_run
44.8±0.3ms	45.6±3ms	1.02	benchmarks.ReassignHalfOfNestedSeries.time_run
250M	250M	1	benchmarks.AssignSingleDfToNestedSeries.peakmem_run
135M	135M	1	benchmarks.CountNestedBy.peakmem_run
102M	102M	1	benchmarks.NestedFrameAddNested.peakmem_run
106M	107M	1	benchmarks.NestedFrameQuery.peakmem_run
11.0±0.05ms	11.0±0.2ms	1	benchmarks.NestedFrameQuery.time_run
105M	106M	1	benchmarks.NestedFrameReduce.peakmem_run

Click here to view all benchmarks.

[gitosaurus]

Looks great!