Fix typos in CONTRIBUTING
Fix typos in CONTRIBUTING

thalesfsp/Leaflet,msokk/Leaflet,msiadak/Leaflet,wrrnwng/Leaflet,Leaflet/Leaflet,caiiiycuk/Leaflet,mourner/Leaflet,devjoseluis/Leaflet,Srikanth4/Leaflet,kumy/Leaflet,DrillingInfo/Leaflet,lee101/Leaflet,jasonoverland/Leaflet,bbecquet/Leaflet,Trufi/Leaflet,litnerdy/Leaflet,mourner/Leaflet,AndBicScadMedia/Leaflet,stefanocudini/Leaflet,MuellerMatthew/Leaflet,sambernet/Leaflet,brunocasanova/frontend-asset-leaflet,msokk/Leaflet,scaddenp/Leaflet,tbassett44/Leaflet,litnerdy/Leaflet,codeator/Leaflet,Ubisense/Leaflet,fab1an/Leaflet,davidlukerice/Leaflet,wancharle/Leaflet,AP-whitehat/Leaflet,pakro/Leaflet,tsantacruz/RotationalMarker,CapeSepias/Leaflet,iOffice/Leaflet,fab1an/Leaflet,tomnod/Leaflet,dhootha/Leaflet,taraszerebecki/Leaflet,mediasuitenz/Leaflet,Ubisense/Leaflet,Neorth/Leaflet,Fil/Leaflet,beni55/Leaflet,iamjonbradley/Leaflet,bolshoibooze/Leaflet,Andrey-Pavlov/Leaflet,Leaflet/Leaflet,frogcat/Leaflet,nikhildhamsaniya/Leaflet,2gis/Leaflet,webmechanicx/Leaflet,Fil/Leaflet,cartant/Leaflet,taraszerebecki/Leaflet,Srikanth4/Leaflet,iOffice/Leaflet,tbassett44/Leaflet,tomnod/Leaflet,psicomante/Leaflet,pzdz/Leaflet,pakro/Leaflet,nycitt/Leaflet,nycitt/Leaflet,sambernet/Leaflet,Srikanth4/Leaflet,tormi/Leaflet,w8r/Leaflet,alex2wong/Leaflet,nycitt/Leaflet,prashen/Leaflet,elfalem/Leaflet,geoloep/Leaflet,northerneyes/Leaflet,scaddenp/Leaflet,akauppi/Leaflet,twoubt/Leaflet,hyperknot/Leaflet,cartant/Leaflet,kjell/Leaflet,sellonen/Leaflet,waeltken/Leaflet,nathancahill/Leaflet,lee101/Leaflet,grahamthompson/Leaflet,litnerdy/Leaflet,jblarsen/Leaflet,tomnod/Leaflet,brunocasanova/frontend-asset-leaflet,fillerwriter/Leaflet,pzdz/Leaflet,Ubisense/Leaflet,nikhildhamsaniya/Leaflet,akrzyzanowskino/TeamSE,huangsong/Leaflet,mstahv/Leaflet,yohanboniface/Leaflet,nvoron23/Leaflet,jasonoverland/Leaflet,cmulders/Leaflet,RobertoMalatesta/Leaflet,huangsong/Leaflet,nathancahill/Leaflet,geoloep/Leaflet,iOffice/Leaflet,jasonoverland/Leaflet,sisou/Leaflet,psicomante/Leaflet,devjoseluis/Leaflet,mstahv/Leaflet,gabrielpconceicao/frontend-asset-leaflet,klaftertief/Leaflet,fredericksilva/Leaflet,Andrey-Pavlov/Leaflet,snkashis/Leaflet,lee101/Leaflet,thalesfsp/Leaflet,2gis/Leaflet,hyperknot/Leaflet,kumy/Leaflet,CapeSepias/Leaflet,MuellerMatthew/Leaflet,wpf500/Leaflet,nikhildhamsaniya/Leaflet,dhootha/Leaflet,DrillingInfo/Leaflet,beni55/Leaflet,Fil/Leaflet,cmulders/Leaflet,nkovacs/Leaflet,brunocasanova/frontend-asset-leaflet,juliensoret/Leaflet,AndBicScadMedia/Leaflet,pzdz/Leaflet,rlugojr/Leaflet,mediasuitenz/Leaflet,thalesfsp/Leaflet,bolshoibooze/Leaflet,nvoron23/Leaflet,javimolla/Leaflet,bbecquet/Leaflet,iamjonbradley/Leaflet,elfalem/Leaflet,AndBicScadMedia/Leaflet,w8r/Leaflet,fillerwriter/Leaflet,rlugojr/Leaflet,sellonen/Leaflet,RobertoMalatesta/Leaflet,brah/Leaflet,davidlukerice/Leaflet,CorainChicago/Leaflet,iZucken/Leaflet,msiadak/Leaflet,hyperknot/Leaflet,RLRR/Leaflet,billybonz1/Leaflet,davidlukerice/Leaflet,stefanocudini/Leaflet,starsolaris/Leaflet,davojta/Leaflet,akauppi/Leaflet,akauppi/Leaflet,devjoseluis/Leaflet,jblarsen/Leaflet,elkingtonmcb/Leaflet,northerneyes/Leaflet,CapeSepias/Leaflet,olafurr/Leaflet,RyanHickman/Leaflet,eriksjaastad/Leaflet,Neorth/Leaflet,bbecquet/Leaflet,gabrielpconceicao/frontend-asset-leaflet,AP-whitehat/Leaflet,bolshoibooze/Leaflet,Andrey-Pavlov/Leaflet,Ossehoht/Leaflet,CorainChicago/Leaflet,iamjonbradley/Leaflet,snkashis/Leaflet,andrewmartini/Leaflet,twoubt/Leaflet,Jakobud/Leaflet,brah/Leaflet,prashen/Leaflet,wpf500/Leaflet,msiadak/Leaflet,kjell/Leaflet,Jakobud/Leaflet,billybonz1/Leaflet,akrzyzanowskino/TeamSE,sisou/Leaflet,codeator/Leaflet,jmutua2015/Leaflet,tbassett44/Leaflet,tsantacruz/RotationalMarker,elkingtonmcb/Leaflet,nkovacs/Leaflet,juliensoret/Leaflet,iZucken/Leaflet,waeltken/Leaflet,pakro/Leaflet,andrewmartini/Leaflet,javimolla/Leaflet,webmechanicx/Leaflet,Trufi/Leaflet,CorainChicago/Leaflet,gabrielpconceicao/frontend-asset-leaflet,dhootha/Leaflet,wancharle/Leaflet,AP-whitehat/Leaflet,yohanboniface/Leaflet,rlugojr/Leaflet,javimolla/Leaflet,mbrukman/Leaflet,2gis/Leaflet,mbrukman/Leaflet,w8r/Leaflet,akrzyzanowskino/TeamSE,andrewmartini/Leaflet,tormi/Leaflet,frogcat/Leaflet,sellonen/Leaflet,cmulders/Leaflet,Leaflet/Leaflet,twoubt/Leaflet,elkingtonmcb/Leaflet,grahamthompson/Leaflet,alex2wong/Leaflet,wrrnwng/Leaflet,snkashis/Leaflet,RobertoMalatesta/Leaflet,alex2wong/Leaflet,webmechanicx/Leaflet,prashen/Leaflet,mstahv/Leaflet,elfalem/Leaflet,RyanHickman/Leaflet,Ossehoht/Leaflet,psicomante/Leaflet,yohanboniface/Leaflet,jmutua2015/Leaflet,mediasuitenz/Leaflet,wrrnwng/Leaflet,Ossehoht/Leaflet,davojta/Leaflet,RyanHickman/Leaflet,Neorth/Leaflet,fredericksilva/Leaflet,stefanocudini/Leaflet,caiiiycuk/Leaflet,billybonz1/Leaflet,klaftertief/Leaflet,Trufi/Leaflet,fillerwriter/Leaflet,codeator/Leaflet,Jakobud/Leaflet,msokk/Leaflet,jblarsen/Leaflet,eriksjaastad/Leaflet,taraszerebecki/Leaflet,olafurr/Leaflet,beni55/Leaflet,geoloep/Leaflet,mourner/Leaflet,fredericksilva/Leaflet,huangsong/Leaflet,eriksjaastad/Leaflet,davojta/Leaflet,sisou/Leaflet,nathancahill/Leaflet,jmutua2015/Leaflet,tsantacruz/RotationalMarker,starsolaris/Leaflet,brah/Leaflet,wpf500/Leaflet,frogcat/Leaflet,mbrukman/Leaflet,cartant/Leaflet,fab1an/Leaflet,MuellerMatthew/Leaflet,kumy/Leaflet,klaftertief/Leaflet,olafurr/Leaflet,scaddenp/Leaflet,wancharle/Leaflet,caiiiycuk/Leaflet,waeltken/Leaflet,grahamthompson/Leaflet,sambernet/Leaflet,RLRR/Leaflet,iZucken/Leaflet,starsolaris/Leaflet,tormi/Leaflet,RLRR/Leaflet