Improve quickstart on how to make and use meta.

[gitosaurus]

Change Description

Expand and improve the discussion of necessary nested-dask meta= in the quickstart.

Part of the fix to astronomy-commons/lsdb#670 .

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Before [0be141b]	After [fe88b10]	Ratio	Benchmark (Parameter)
283±2ms	284±3ms	1.01	benchmarks.NestedFrameAddNested.time_run
136M	136M	1	benchmarks.NestedFrameAddNested.peakmem_run
139M	138M	1	benchmarks.NestedFrameQuery.peakmem_run
864±10ms	864±2ms	1	benchmarks.NestedFrameQuery.time_run
135M	135M	1	benchmarks.NestedFrameReduce.peakmem_run
291±2ms	291±1ms	1	benchmarks.NestedFrameReduce.time_run

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.78%. Comparing base (0be141b) to head (3318d29).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #95   +/-   ##
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  Coverage   95.78%   95.78%           
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  Files           9        9           
  Lines         261      261           
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  Hits          250      250           
  Misses         11       11           

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[dougbrn]

@gitosaurus This is great, my only issue is that people probably won't read this documentation since nested-dask is effectively deprecated! I think we should preserve this as part of LSDB #680, in the eventual focus on nestedframes within the LSDB docs, but happy to merge this in here too.