Update resume.md for 2024

[streats]

• [ ] Redo intro:
  • [x] Remove i18n/mobile, focus on information design & a11y.
• [x] Flesh out GitHub experience
• [ ] Add specific projects:
  • [ ] GitHub A11y work (style guide)
  • [ ] GOV UK A11y WCAG primer
  • [ ] Startups link to case studies
• [x] Add MA to Education
• [ ] Clean up Professional Development:
  • [x] Take off content design, game design and statistics
  • [x] Link to courses/programs
  • [ ] Add brief summary/outcome