The only thing in here related to web is the `npm` command. Everything else, git, terminal tabs, meaning of `$` is generic to any engineer, front end, back end, ML, AI etc.
What's missing that is critical in any Here's How to Use the Terminal article is showing the `man` command. I think showing other popular commands like `mv`, `cp`, `pwd`, and using `ctrl-r` to reverse search should also be included.
I also think Hyper is not a great terminal to start out with. The default terminal that ships on someone's computer is usually the best. If you're going to use any other terminal emulator, I'd say iTerm2 or Alacritty should be suggested.