Restructure README for better introduction, flow and more practical examples

[destel]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.10%. Comparing base (afaad2d) to head (d8eaa31).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #40      +/-   ##
==========================================
+ Coverage   99.02%   99.10%   +0.08%     
==========================================
  Files          17       17              
  Lines         817     1002     +185     
==========================================
+ Hits          809      993     +184     
- Misses          8        9       +1     

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