DOC: URLs link to original numpy and pandas docs

[Dawnfz-Lenfeng]

What do these changes do?

• Add comparison tables for the APIs of numpy and pandas.
• Modify comparison tables for Xgboost and lightgbm.

Note
The following APIs of Xorbits are inconsistent with the original ones:

• xorbits.xgboost.predict
• xorbits.lightgbm.predict
• xorbits.lightgbm.predict_proba methods
• xorbits.numpy.from_hdf5
• xorbits.numpy.to_hdf5
• xorbits.numpy.from_zarr
• xorbits.numpy.to_zarr
• xorbits.numpy.from_tiledb
• xorbits.numpy.to_tiledb
• xorbits.numpy.lib.arraysetops

Related issue number

Fixes #xxxx

Check code requirements

• tests added / passed (if needed)
• Ensure all linting tests pass

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 82.53%. Comparing base (9700db7) to head (83086fc).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #824      +/-   ##
==========================================
- Coverage   83.01%   82.53%   -0.49%     
==========================================
  Files        1071     1071              
  Lines       80113    80113              
  Branches    12200    12200              
==========================================
- Hits        66509    66123     -386     
- Misses      12042    12442     +400     
+ Partials     1562     1548      -14     

Flag	Coverage Δ
unittests	82.43% <ø> (-0.49%)	⬇️

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[luweizheng]

LGTM