Add detail to README for adding a new interview question

[ziyadedher]

Note that the new question .html file should just be copied from an existing one in its respective /questions/technical/ or /question/whiteboard/ folder and modified accordingly to maintain consistency.

Note that the created technical or whiteboard question must be added to the respective whiteboard.html or technical.html file.

Note that the <title> and <h1> tags of the copied file must be changed to represent the new question.

Supported by #33

[LukeSchlangen]

Thank you @ziyadedher! I think these notes will help our experienced users (who won't be using the VS Code or Atom guides) remember every component of what needs to be done when adding a new question.

[izulien]

I can make these changes when I update #22 to include the VS Code link.

Unless of course @ziyadedher or another user wants to make the correction.

[LukeSchlangen]

Sounds good! That makes sense since it will be in the same section you're already editing. Why don't you plan to take it unless we hear from someone else!