contributing guide: link fix
contributing guide: link fix

bendavidson/graphhopper,devemux86/graphhopper,Kwangseob/graphhopper,DIVERSIFY-project/SMART-GH,don-philipe/graphhopper,cloudbearings/SMART-GH,kod3r/graphhopper,engaric/graphhopper,CEPFU/graphhopper,DIVERSIFY-project/SMART-GH,bendavidson/graphhopper,DIVERSIFY-project/SMART-GH,ratrun/graphhopper,ratrun/graphhopper,boldtrn/graphhopper,cecemel/graphhopper,graphhopper/graphhopper,ammagamma/graphhopper,fbonzon/graphhopper,prembasumatary/graphhopper,HelgeKrueger/graphhopper,HelgeKrueger/graphhopper,SamSix/graphhopper,jansoe/graphhopper,boldtrn/graphhopper,boldtrn/graphhopper,piemapping/graphhopper,jansoe/graphhopper,DIVERSIFY-project/SMART-GH,hguerrero/graphhopper,devemux86/graphhopper,mmalfertheiner/graphhopper,msoftware/graphhopper,ratrun/graphhopper,nside/graphhopper,PGWelch/graphhopper,engaric/graphhopper,seeebiii/graphhopper,don-philipe/graphhopper,routexl/graphhopper,piemapping/graphhopper,tlatt/graphhopper,SamSix/graphhopper,HelgeKrueger/graphhopper,komoot/graphhopper,tobias74/graphhopper,don-philipe/graphhopper,zhiqiangZHAO/graphhopper,heisenpai/GraphHopper,piemapping/graphhopper,graphhopper/graphhopper,fbonzon/graphhopper,cecemel/graphhopper,mmalfertheiner/graphhopper,cecemel/graphhopper,kod3r/graphhopper,piemapping/graphhopper,tobias74/graphhopper,cecemel/graphhopper,komoot/graphhopper,DIVERSIFY-project/SMART-GH,heisenpai/GraphHopper,routexl/graphhopper,tlatt/graphhopper,cloudbearings/SMART-GH,SamSix/graphhopper,Ranjan101/graphhopper,heisenpai/GraphHopper,tsammons/SMART-GH,joh12041/graphhopper,tobias74/graphhopper,PGWelch/graphhopper,prembasumatary/graphhopper,Ranjan101/graphhopper,ratrun/graphhopper,CEPFU/graphhopper,ammagamma/graphhopper,kalvish/graphhopper,kalvish/graphhopper,heisenpai/GraphHopper,hguerrero/graphhopper,don-philipe/graphhopper,fbonzon/graphhopper,mmalfertheiner/graphhopper,tlatt/graphhopper,nside/graphhopper,CEPFU/graphhopper,zhiqiangZHAO/graphhopper,PGWelch/graphhopper,mmalfertheiner/graphhopper,nside/graphhopper,Kwangseob/graphhopper,zzottel/graphhopper,komoot/graphhopper,bendavidson/graphhopper,nside/graphhopper,joh12041/graphhopper,kod3r/graphhopper,PGWelch/graphhopper,graphhopper/graphhopper,zhiqiangZHAO/graphhopper,cloudbearings/SMART-GH,CEPFU/graphhopper,tsammons/SMART-GH,zzottel/graphhopper,joh12041/graphhopper,msoftware/graphhopper,boldtrn/graphhopper,joh12041/graphhopper,ammagamma/graphhopper,msoftware/graphhopper,hguerrero/graphhopper,jansoe/graphhopper,seeebiii/graphhopper,tsammons/SMART-GH,prembasumatary/graphhopper,cloudbearings/SMART-GH,fbonzon/graphhopper,tsammons/SMART-GH,Ranjan101/graphhopper,zhiqiangZHAO/graphhopper,prembasumatary/graphhopper,graphhopper/graphhopper,Kwangseob/graphhopper,ammagamma/graphhopper,zhiqiangZHAO/graphhopper,komoot/graphhopper,jansoe/graphhopper,SamSix/graphhopper,engaric/graphhopper,zzottel/graphhopper,tlatt/graphhopper,engaric/graphhopper,devemux86/graphhopper,nside/graphhopper,HelgeKrueger/graphhopper,tsammons/SMART-GH,kalvish/graphhopper,seeebiii/graphhopper,hguerrero/graphhopper,msoftware/graphhopper,kalvish/graphhopper,cloudbearings/SMART-GH,SamSix/graphhopper,Ranjan101/graphhopper,routexl/graphhopper,kod3r/graphhopper,devemux86/graphhopper,Kwangseob/graphhopper,bendavidson/graphhopper,tobias74/graphhopper,zzottel/graphhopper,routexl/graphhopper,seeebiii/graphhopper