Nice work - so far this looks like a fun way to learn about how computers communicate with one another.
If I'm not mistaken, it looks like there's a typo under the section "Binary is better?": it reads "...then R is also number 5" when I think it should read "...then F is also number 5".
Awesome! Thanks for reporting the first typo! I'm currently deciding between building a report errata feature, or just making it public on GitHub and accepting PRs.