Clarify technical interview circumstance and content

[jessepollak]

In the words of @techiecheckie:

"I need to know beforehand if this is going to be some "find all 4-tuples summing to k" question on a whiteboard, or like a real question in real circumstances. I instantly turn down interviews that have bad interview circumstances because half my interviews were by outright jerks. It should be clarified for the diversity angle because people will turn down poorly thought out interviews if they can."

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