Commits a81e8ad: update roman-numerals package ref (nsoiffer) 413b4eb: Merge branch 'main' of https://github.com/NSoiffer/MathCAT (nsoiffer) ea47d6e: Revert "Switch from unmaintained yaml-rust to yaml-rust2 (#422)" (nsoiffer) 24f6fbe: Added a commented out easier upgrade path to yaml-rust2. (nsoiffer)
