Changes from Mercurial (hg https://foss.heptapod.net/isa-afp/afp-devel/ default)
Summary
- merge
- rerun sitegen after merge from AFP 2023
- merge from AFP 2023
- metadata and sitegen for MFOTL_Checker
- new entry: MFOTL_Checker
- New entry: ConcurrentHOL
- Uncertainty_Principle sitegen
- New entry /Users/lp15/.isabelle/Isabelle2023/browser_info/AFP/Uncertainty_Principle
- sitegen for Broadcast_Psi
- new entry Broadcast_Psi