[docs] Quick tour refactor (#2008)
* quick tour refactor, moved internal mechanism into a conceptual guide
* Apply suggestions from code review
Co-authored-by: Zach Mueller <muellerzr@gmail.com>
* Apply suggestions from code review
Co-authored-by: Zach Mueller <muellerzr@gmail.com>
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Co-authored-by: Zach Mueller <muellerzr@gmail.com>
