fix typo in sis api docs
fix typo in sis api docs

Change-Id: Ibb303c49cb9c774bd1e8bacc7ad5ff297da4a96f
Reviewed-on: https://gerrit.instructure.com/31025
Reviewed-by: Rob Orton <rob@instructure.com>
Tested-by: Jenkins <jenkins@instructure.com>
Product-Review: Brian Palmer <brianp@instructure.com>
QA-Review: Brian Palmer <brianp@instructure.com>

Conflicts:
	app/controllers/sis_imports_api_controller.rb

whalejasmine/canvas-lms,fronteerio/canvas-lms,shidao-fm/canvas-lms,jay3126/canvas-lms,redconfetti/canvas-lms,redconfetti/canvas-lms,arrivu/hoodemo,sfu/canvas-lms,SwinburneOnline/canvas-lms,wye0220/shindig-canvas,efrj/canvas-lms,venturehive/canvas-lms,skmezanul/canvas-lms,whalejasmine/canvas-lms,antoniuslin/canvas-lms,ShreniiNepal/shrenii_lmp,greyhwndz/canvas-lms,djbender/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,usmschuck/canvas,tgroshon/canvas-lms,shidao-fm/canvas-lms,arrivu/arrivu-lms,sdeleon28/canvas-lms,roxolan/canvas-lms,sfu/canvas-lms,Rvor/canvas-lms,djbender/canvas-lms,ShreniiNepal/shrenii_lmp,grahamb/canvas-lms,shidao-fm/canvas-lms,djbender/canvas-lms,SwinburneOnline/canvas-lms,sdeleon28/canvas-lms,SwinburneOnline/canvas-lms,sfu/canvas-lms,wrdsb/canvas-lms,shidao-fm/canvas-lms,juoni/canvas-lms,redconfetti/canvas-lms,antoniuslin/canvas-lms,juoni/canvas-lms,utkarshx/canvas-lms,arrivu/hoodemo,HotChalk/canvas-lms,leftplusrightllc/canvas-lms,Unow/canvas-lms,arrivu/hoodemo,antoniuslin/canvas-lms,sfu/canvas-lms,ShreniiNepal/shrenii_lmp,fronteerio/canvas-lms,va7map/canvas-lms,roxolan/canvas-lms,utkarshx/canvas-lms,fronteerio/canvas-lms,skmezanul/canvas-lms,kyroskoh/canvas-lms,whalejasmine/canvas-lms,Rvor/canvas-lms,greyhwndz/canvas-lms,kyroskoh/canvas-lms,antoniuslin/canvas-lms,va7map/canvas-lms,juoni/canvas-lms,fronteerio/canvas-lms,kyroskoh/canvas-lms,Unow/canvas-lms,va7map/canvas-lms,redconfetti/canvas-lms,SwinburneOnline/canvas-lms,utkarshx/canvas-lms,samuels410/greatlakes-lms,HotChalk/canvas-lms,Rvor/canvas-lms,grahamb/canvas-lms,roxolan/canvas-lms,usmschuck/canvas,arrivu/arrivu-lms,venturehive/canvas-lms,wrdsb/canvas-lms,tgroshon/canvas-lms,efrj/canvas-lms,HotChalk/canvas-lms,sdeleon28/canvas-lms,efrj/canvas-lms,utkarshx/canvas-lms,juoni/canvas-lms,greyhwndz/canvas-lms,usmschuck/canvas,tgroshon/canvas-lms,tgroshon/canvas-lms,roxolan/canvas-lms,Jyaasa/canvas-lms,grahamb/canvas-lms,kyroskoh/canvas-lms,sfu/canvas-lms,Jyaasa/canvas-lms,Jyaasa/canvas-lms,skmezanul/canvas-lms,efrj/canvas-lms,HotChalk/canvas-lms,samuels410/greatlakes-lms,greyhwndz/canvas-lms,ShreniiNepal/shrenii_lmp,venturehive/canvas-lms,samuels410/greatlakes-lms,leftplusrightllc/canvas-lms,jay3126/canvas-lms,leftplusrightllc/canvas-lms,va7map/canvas-lms,grahamb/canvas-lms,wrdsb/canvas-lms,wye0220/shindig-canvas,jay3126/canvas-lms,wye0220/shindig-canvas,usmschuck/canvas,leftplusrightllc/canvas-lms,grahamb/canvas-lms,venturehive/canvas-lms,Rvor/canvas-lms,arrivu/arrivu-lms,Jyaasa/canvas-lms,djbender/canvas-lms,Unow/canvas-lms,wrdsb/canvas-lms,jay3126/canvas-lms,skmezanul/canvas-lms,whalejasmine/canvas-lms,samuels410/greatlakes-lms,sdeleon28/canvas-lms