Update markdown cells to use MyST formatting for attention, supplemental info, etc.

[dolsysmith]

• [x] Use MyST admonition directives for the following:
  • [x] questions
  • [x] notes
  • [x] Try it out!
  • [x] For the curious (with dropdown directive)
• [ ] Use the margin directive for extraneous content
• [x] Custom styles for each type of admonition
• [x] {term} directives for glossary cross-references