Update PLUGIN-GUIDE.md
Update PLUGIN-GUIDE.md

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