Outreachy December 2024 Demo

The OCaml community participated in the December 2024 round of [Outreachy internships](https://www.outreachy.org). One intern worked on a tool for diffing OCaml APIs. This meeting was an opportunity for our intern to present their work and for the community to ask questions and was originally [announced on the discuss forum](https://discuss.ocaml.org/t/outreachy-december-2024-round/15223/5).