Fix the location of the LTI privacy_level key in docs
Fix the location of the LTI privacy_level key in docs

closes GH-1822
flag=none

Previously it was in the wrong place and was thus ignored.

Fixes #1794. Thanks @simonnorr and @andrew-gardener for the help in
identifying this issue.

Signed-off-by: Jade Fink <software@lfcode.ca>

Change-Id: Icf3a02bee3ce34aa40e1cfd8d2811aa325ef3642
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/263377
Tested-by: Service Cloud Jenkins <9144042a601061f88f1e1d7a1753ea3e2972119d@instructure.com>
Reviewed-by: Tucker Mcknight <4b51b98c1d84aa97854d216bd061ce5d3eda8a28@instructure.com>
QA-Review: Tucker Mcknight <4b51b98c1d84aa97854d216bd061ce5d3eda8a28@instructure.com>
Product-Review: Spencer Olson <7cc0890d6f1f70810a023e7173eca5724d6c8e49@instructure.com>

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