389 doc update

[DivadNojnarg]

• Add diagrams from useR2024 presentation.
• Add field explanation in intro vignette.
• Add brief workspace section in intro vignette.
• Embed useR2024 slides.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.80%. Comparing base (db3f076) to head (300244a).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #391   +/-   ##
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  Coverage   84.80%   84.80%           
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  Files          21       21           
  Lines        2159     2159           
=======================================
  Hits         1831     1831           
  Misses        328      328           

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[DivadNojnarg]

@nbenn We're good for review here, updated the new.md as well. We now have a better github readme with more context and example, an entire vignette with various case studies, more diagrams, and info inherited from the useR2024 slides ...

[nbenn]

Lgtm, thanks!