Small edits to lecture notes.
Small edits to lecture notes.


Former-commit-id: 15dc00d536e40ee9edae13b02cf92fde786fc707 [formerly 8245b7c81b578778fbee9ea1f108b11cf09a5dfb]
Former-commit-id: c50938f6c6f06747b3ad3a2482d1d1ba9f0a8886
justinbois/bebi103_utils