make links more descriptive
make links more descriptive

fixes PLAT-583

test plan:
the links on the App Setting page for eduappcenter and Canvas community topics for lti tools should be more descriptive

Change-Id: I066a6181ee60daa6e4200b2737c799f7976f4bed
Reviewed-on: https://gerrit.instructure.com/38777
Reviewed-by: Brad Humphrey <9233b6f5388d6867a2a7be14d8b4ba53c86cfde2@instructure.com>
Tested-by: Jenkins <d95b56ce41a2e1ac4cecdd398defd7414407cc08@instructure.com>
QA-Review: Clare Strong <40d6bb3ed7fef516c73274131d5a837c16de74fd@instructure.com>
Product-Review: Nathan Mills <10b0771d20c18ad0d98c1d000665e443052b40b0@instructure.com>

leftplusrightllc/canvas-lms,redconfetti/canvas-lms,grahamb/canvas-lms,samuels410/greatlakes-lms,efrj/canvas-lms,instructure/canvas-lms,ShreniiNepal/shrenii_lmp,SwinburneOnline/canvas-lms,instructure/canvas-lms,tgroshon/canvas-lms,AndranikMarkosyan/lms,kyroskoh/canvas-lms,shidao-fm/canvas-lms,wrdsb/canvas-lms,efrj/canvas-lms,gbleydon/canvas-lms,snehakachroo1/LSI_replica,skmezanul/canvas-lms,va7map/canvas-lms,wye0220/shindig-canvas,skmezanul/canvas-lms,eCNAP/CANVAS,djbender/canvas-lms,instructure/canvas-lms,greyhwndz/canvas-lms,kyroskoh/canvas-lms,utkarshx/canvas-lms,ShreniiNepal/shrenii_lmp,skmezanul/canvas-lms,sfu/canvas-lms,utkarshx/canvas-lms,efrj/canvas-lms,shidao-fm/canvas-lms,instructure/canvas-lms,wye0220/shindig-canvas,skmezanul/canvas-lms,Jyaasa/canvas-lms,jay3126/canvas-lms,AndranikMarkosyan/lms,Rvor/canvas-lms,va7map/canvas-lms,Rvor/canvas-lms,HotChalk/canvas-lms,juoni/canvas-lms,wrdsb/canvas-lms,greyhwndz/canvas-lms,sdeleon28/canvas-lms,jay3126/canvas-lms,wye0220/shindig-canvas,djbender/canvas-lms,wrdsb/canvas-lms,dgynn/canvas-lms,narigone/canvas,tgroshon/canvas-lms,HotChalk/canvas-lms,ShreniiNepal/shrenii_lmp,SwinburneOnline/canvas-lms,kyroskoh/canvas-lms,Jyaasa/canvas-lms,eCNAP/CANVAS,fronteerio/canvas-lms,dgynn/canvas-lms,instructure/canvas-lms,va7map/canvas-lms,Rvor/canvas-lms,greyhwndz/canvas-lms,roxolan/canvas-lms,antoniuslin/canvas-lms,leftplusrightllc/canvas-lms,fronteerio/canvas-lms,sfu/canvas-lms,snehakachroo1/LSI_replica,whalejasmine/canvas-lms,leftplusrightllc/canvas-lms,fronteerio/canvas-lms,gbleydon/canvas-lms,kyroskoh/canvas-lms,samuels410/greatlakes-lms,SwinburneOnline/canvas-lms,juoni/canvas-lms,SwinburneOnline/canvas-lms,sfu/canvas-lms,matematikk-mooc/canvas-lms,grahamb/canvas-lms,roxolan/canvas-lms,juoni/canvas-lms,matematikk-mooc/canvas-lms,roxolan/canvas-lms,instructure/canvas-lms,narigone/canvas,eCNAP/CANVAS,narigone/canvas,samuels410/greatlakes-lms,greyhwndz/canvas-lms,grahamb/canvas-lms,matematikk-mooc/canvas-lms,sfu/canvas-lms,gbleydon/canvas-lms,Jyaasa/canvas-lms,Rvor/canvas-lms,dgynn/canvas-lms,tgroshon/canvas-lms,roxolan/canvas-lms,snehakachroo1/LSI_replica,eCNAP/CANVAS,HotChalk/canvas-lms,djbender/canvas-lms,leftplusrightllc/canvas-lms,samuels410/greatlakes-lms,shidao-fm/canvas-lms,venturehive/canvas-lms,narigone/canvas,redconfetti/canvas-lms,redconfetti/canvas-lms,tgroshon/canvas-lms,utkarshx/canvas-lms,ShreniiNepal/shrenii_lmp,grahamb/canvas-lms,sfu/canvas-lms,antoniuslin/canvas-lms,AndranikMarkosyan/lms,venturehive/canvas-lms,shidao-fm/canvas-lms,sfu/canvas-lms,matematikk-mooc/canvas-lms,HotChalk/canvas-lms,whalejasmine/canvas-lms,instructure/canvas-lms,sdeleon28/canvas-lms,utkarshx/canvas-lms,redconfetti/canvas-lms,grahamb/canvas-lms,sdeleon28/canvas-lms,antoniuslin/canvas-lms,Jyaasa/canvas-lms,jay3126/canvas-lms,venturehive/canvas-lms,snehakachroo1/LSI_replica,efrj/canvas-lms,whalejasmine/canvas-lms,djbender/canvas-lms,sdeleon28/canvas-lms,juoni/canvas-lms,antoniuslin/canvas-lms,dgynn/canvas-lms,wrdsb/canvas-lms,whalejasmine/canvas-lms,va7map/canvas-lms,fronteerio/canvas-lms,venturehive/canvas-lms,jay3126/canvas-lms,AndranikMarkosyan/lms,sfu/canvas-lms