Issue xy data documentation

[ayushjariyal]

solve #6736

[codecov]

Codecov Report

Attention: Patch coverage is 60.00000% with 2 lines in your changes missing coverage. Please review.

Project coverage is 78.12%. Comparing base (f43a510) to head (dd7cd62).
Report is 4 commits behind head on main.

Files with missing lines	Patch %	Lines
src/aiida/orm/nodes/data/array/xy.py	60.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6755      +/-   ##
==========================================
+ Coverage   78.09%   78.12%   +0.04%     
==========================================
  Files         564      564              
  Lines       42544    42526      -18     
==========================================
+ Hits        33219    33220       +1     
+ Misses       9325     9306      -19     

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[unkcpz]

Thanks @ayushjariyal can we stick with the original PR? I close this one.