Add Reader-Writer

[TTWNO]

• Adds reader and writer examples

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 78.84615% with 55 lines in your changes missing coverage. Please review.

Project coverage is 75.04%. Comparing base (962694a) to head (7545dca).
Report is 19 commits behind head on main.

Files with missing lines	Patch %	Lines
src/proptests.rs	37.93%	54 Missing ⚠️
src/writer.rs	95.45%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main       #9      +/-   ##
==========================================
+ Coverage   72.51%   75.04%   +2.52%     
==========================================
  Files           2        5       +3     
  Lines         393      553     +160     
==========================================
+ Hits          285      415     +130     
- Misses        108      138      +30     

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