docs: Update README to include usage instructions for stream and async

[chyroc]

• Added instructions on how to use stream functionality
• Included guidelines for implementing async operations

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.76%. Comparing base (0b16636) to head (ed7c583).
Report is 1 commits behind head on main.

@@           Coverage Diff           @@
##             main      #62   +/-   ##
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  Coverage   98.76%   98.76%           
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  Files          38       38           
  Lines        2343     2343           
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  Hits         2314     2314           
  Misses         29       29           

Files with missing lines	Coverage Δ
cozepy/bots/__init__.py	100.00% <ø> (ø)