Dark mode text visualization

[sg-woodman]

When viewing the README tutorial in dark mode the math notation starting in section 5 is difficult to see.

Browser: Safari Version 26.3 (21623.2.7.11.6)
Hardware: Apple M2 Pro Macbook
OS: Tahoe 26.3

[Smendero]

This issue has been noted - for now, we suggest any users experiencing this issue to use light mode.