doc on debug
doc on debug

sosm/osrm-frontend,yuryleb/osrm-frontend,yuryleb/osrm-frontend,Project-OSRM/osrm-frontend,wheelroute/osrm-frontend-wheelchair-electro,sosm/osrm-frontend,Project-OSRM/osrm-frontend-v2,Project-OSRM/osrm-frontend,yuryleb/osrm-frontend,Project-OSRM/osrm-frontend-v2,wheelroute/osrm-frontend-wheelchair-normal,wheelroute/osrm-frontend-wheelchair-normal,wheelroute/osrm-frontend-wheelchair-electro,sosm/osrm-frontend,Project-OSRM/osrm-frontend