[Documentation] add how to for handling multiple sorting interfaces

[h-mayorquin]

Adding documentation for how to add multiple sorting interfaces and a convenience method for re-naming.

Should close #1447

[codecov]

Codecov Report

❌ Patch coverage is 90.90909% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 87.06%. Comparing base (589501f) to head (bc0b12d).

Files with missing lines	Patch %	Lines
...nterfaces/ecephys/basesortingextractorinterface.py	90.90%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1451   +/-   ##
=======================================
  Coverage   87.06%   87.06%           
=======================================
  Files         145      145           
  Lines        9691     9702   +11     
=======================================
+ Hits         8437     8447   +10     
- Misses       1254     1255    +1     

Flag	Coverage Δ
unittests	87.06% <90.90%> (+<0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
...nterfaces/ecephys/basesortingextractorinterface.py	81.41% <90.90%> (+1.02%)	⬆️

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.