publish2026-may31

Polish Bayesian lecture and rename prob_dist title (#760)

- Add an overview flowchart (prior belief + data -> updated belief),
  drawn inline with matplotlib in a hide-input cell
- Tighten prose around the prior and normalizing constant; define c(y)
  explicitly and present the trapezoidal rule as a numbered list
- Fix a missing period and trailing whitespace
- Rename "Distributions and Probabilities" to "Common Distributions"

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>