Add a link to Lambda Days presentation

[oubiwann]

Slide sources, rendered, video, and example code.

Tasks:

• [x] Create repository
• [x] Push code (all versions of slides)
• [x] Generate final version
• [x] Enable GH pages for generated final version
• [ ] Add code for demos
  • [x] LFE sequencer demo
  • [x] Extempore generative music demo
  • [x] make sure the demos can be run
  • [x] update the paths for their new location in the new repo
• [ ] Add code for the song in the teaser video
• [x] Update README to point to published slides, hi-res YouTube demos, and Lambda Days-published talk

[oubiwann]

Here's the repo: https://github.com/ut-proj/presentations