Update plugins.md
Update plugins.md

Add leaflet-categorized-layers
codeator/Leaflet,brah/Leaflet,jasonoverland/Leaflet,scaddenp/Leaflet,sisou/Leaflet,msiadak/Leaflet,davojta/Leaflet,davojta/Leaflet,stefanocudini/Leaflet,scaddenp/Leaflet,geoloep/Leaflet,iZucken/Leaflet,iOffice/Leaflet,Trufi/Leaflet,Ubisense/Leaflet,CapeSepias/Leaflet,sisou/Leaflet,iOffice/Leaflet,akrzyzanowskino/TeamSE,AP-whitehat/Leaflet,geoloep/Leaflet,akrzyzanowskino/TeamSE,Leaflet/Leaflet,tsantacruz/RotationalMarker,AP-whitehat/Leaflet,stefanocudini/Leaflet,geoloep/Leaflet,Leaflet/Leaflet,Ubisense/Leaflet,brah/Leaflet,iZucken/Leaflet,Neorth/Leaflet,AP-whitehat/Leaflet,brah/Leaflet,sisou/Leaflet,frogcat/Leaflet,rlugojr/Leaflet,CapeSepias/Leaflet,codeator/Leaflet,frogcat/Leaflet,tsantacruz/RotationalMarker,davojta/Leaflet,codeator/Leaflet,Leaflet/Leaflet,scaddenp/Leaflet,iOffice/Leaflet,jasonoverland/Leaflet,jasonoverland/Leaflet,stefanocudini/Leaflet,rlugojr/Leaflet,msiadak/Leaflet,Neorth/Leaflet,Trufi/Leaflet,Ubisense/Leaflet,iZucken/Leaflet,frogcat/Leaflet,msiadak/Leaflet,rlugojr/Leaflet,tsantacruz/RotationalMarker,CapeSepias/Leaflet,Neorth/Leaflet,Trufi/Leaflet,akrzyzanowskino/TeamSE