Correct existing prioritizeNonToolGrade docs
Correct existing prioritizeNonToolGrade docs

closes QUIZ-9500
flag=none

Verify the docs for prioritizeNonToolGrade now specify
adding the new element to the "submissionDetails" element

Change-Id: I30dbdad8feaa5c4fa638f12dc8c2ad3dc8d2d853
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/290383
Tested-by: Service Cloud Jenkins <9144042a601061f88f1e1d7a1753ea3e2972119d@instructure.com>
Product-Review: Stephen Kacsmark <90aaf30f5583a54f0f3cdbd115e37bda3a251932@instructure.com>
Reviewed-by: Dustin Cowles <25afa0fec7fcf03720748195b533ef56026fd0cf@instructure.com>
QA-Review: Weston Dransfield <e9203059795dc94e28a8831c65eb7869e818825e@instructure.com>

sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms