Start playing around with accessor and docs support

[znicholls]

Description

Key reference for the handler: https://mkdocstrings.github.io/usage/handlers/#handler-extensions

Checklist

Please confirm that this pull request has done the following:

• Tests added
• Documentation added (where applicable)
• Changelog item added to changelog/

[codecov]

Codecov Report

Attention: Patch coverage is 72.72727% with 3 lines in your changes missing coverage. Please review.

Project coverage is 99.41%. Comparing base (4908a02) to head (f16826a).

Files with missing lines	Patch %	Lines
src/continuous_timeseries/ct.py	72.72%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #25      +/-   ##
==========================================
- Coverage   99.76%   99.41%   -0.36%     
==========================================
  Files          22       23       +1     
  Lines         838      849      +11     
  Branches       56       56              
==========================================
+ Hits          836      844       +8     
- Misses          2        5       +3     

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