update nl translation
update nl translation

Change-Id: Ia3b67e3a2fa4a9bc9e68fd64815c8e49bd7d9b49
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/256144
Tested-by: Service Cloud Jenkins <9144042a601061f88f1e1d7a1753ea3e2972119d@instructure.com>

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