For plato I think technical writer is the answer.
Technical writer: As a technical writer, you’ll create user manuals and support guides for a number of computer products and services. You may also develop content to market technical products online.
Command prompt is the answer and on Apple devices it is called Terminal.
I cannot see the options but I am guessing that it is just regular HTML
If that is the case the <meta></meta> tag can be used and should be placed within the <head></head> tag
