website: clarify NFS mount options [GH-4858]
website: clarify NFS mount options [GH-4858]

loren-osborn/vagrant,senglin/vagrant,petems/vagrant,Endika/vagrant,lukebakken/vagrant,lonniev/vagrant,bshurts/vagrant,mitchellh/vagrant,Avira/vagrant,h4ck3rm1k3/vagrant,cgvarela/vagrant,bryson/vagrant,dustymabe/vagrant,tomfanning/vagrant,aneeshusa/vagrant,jfchevrette/vagrant,aneeshusa/vagrant,pwnall/vagrant,tschortsch/vagrant,lukebakken/vagrant,jhoblitt/vagrant,Chhed13/vagrant,sni/vagrant,genome21/vagrant,kamazee/vagrant,chrisroberts/vagrant,ianmiell/vagrant,patrys/vagrant,jhoblitt/vagrant,gpkfr/vagrant,mpoeter/vagrant,jkburges/vagrant,modulexcite/vagrant,PatrickLang/vagrant,gitebra/vagrant,petems/vagrant,denisbr/vagrant,tbriggs-curse/vagrant,Endika/vagrant,stephancom/vagrant,loren-osborn/vagrant,muhanadra/vagrant,sni/vagrant,muhanadra/vagrant,mwrock/vagrant,blueyed/vagrant,johntron/vagrant,taliesins/vagrant,krig/vagrant,Chhunlong/vagrant,TheBigBear/vagrant,jmanero/vagrant,petems/vagrant,jmanero/vagrant,johntron/vagrant,mkuzmin/vagrant,nickryand/vagrant,dhoer/vagrant,bheuvel/vagrant,h4ck3rm1k3/vagrant,myrjola/vagrant,tbriggs-curse/vagrant,benh57/vagrant,tbarrongh/vagrant,mitchellh/vagrant,marxarelli/vagrant,janek-warchol/vagrant,senglin/vagrant,loren-osborn/vagrant,bryson/vagrant,sax/vagrant,carlosefr/vagrant,crashlytics/vagrant,modulexcite/vagrant,gitebra/vagrant,vamegh/vagrant,fnewberg/vagrant,crashlytics/vagrant,gpkfr/vagrant,myrjola/vagrant,jtopper/vagrant,dharmab/vagrant,tjanez/vagrant,Avira/vagrant,lonniev/vagrant,bdwyertech/vagrant,bheuvel/vagrant,muhanadra/vagrant,jkburges/vagrant,chrisroberts/vagrant,mwrock/vagrant,philoserf/vagrant,taliesins/vagrant,teotihuacanada/vagrant,cgvarela/vagrant,chrisvire/vagrant,tschortsch/vagrant,aaam/vagrant,dhoer/vagrant,benh57/vagrant,denisbr/vagrant,invernizzi-at-google/vagrant,Chhed13/vagrant,PatOShea/vagrant,PatrickLang/vagrant,PatOShea/vagrant,modulexcite/vagrant,TheBigBear/vagrant,ianmiell/vagrant,jhoblitt/vagrant,krig/vagrant,sni/vagrant,cgvarela/vagrant,benizi/vagrant,jean/vagrant,bshurts/vagrant,krig/vagrant,justincampbell/vagrant,modulexcite/vagrant,signed8bit/vagrant,johntron/vagrant,h4ck3rm1k3/vagrant,krig/vagrant,philoserf/vagrant,Chhed13/vagrant,zsjohny/vagrant,dhoer/vagrant,kalabiyau/vagrant,darkn3rd/vagrant,philoserf/vagrant,ArloL/vagrant,Sgoettschkes/vagrant,Avira/vagrant,TheBigBear/vagrant,gbarberi/vagrant,pwnall/vagrant,jmanero/vagrant,mpoeter/vagrant,gbarberi/vagrant,PatrickLang/vagrant,Endika/vagrant,denisbr/vagrant,pwnall/vagrant,darkn3rd/vagrant,kamigerami/vagrant,gitebra/vagrant,vamegh/vagrant,jtopper/vagrant,aneeshusa/vagrant,dharmab/vagrant,mpoeter/vagrant,gpkfr/vagrant,signed8bit/vagrant,kamazee/vagrant,sax/vagrant,mwarren/vagrant,kalabiyau/vagrant,jberends/vagrant,stephancom/vagrant,dustymabe/vagrant,cgvarela/vagrant,stephancom/vagrant,Sgoettschkes/vagrant,dharmab/vagrant,tjanez/vagrant,nickryand/vagrant,tschortsch/vagrant,apertoso/vagrant,chrisvire/vagrant,PatOShea/vagrant,mkuzmin/vagrant,marxarelli/vagrant,gpkfr/vagrant,bheuvel/vagrant,senglin/vagrant,senglin/vagrant,jberends/vagrant,chrisvire/vagrant,tjanez/vagrant,Chhunlong/vagrant,myrjola/vagrant,invernizzi-at-google/vagrant,ArloL/vagrant,jkburges/vagrant,lonniev/vagrant,bryson/vagrant,wangfakang/vagrant,Chhed13/vagrant,carlosefr/vagrant,jtopper/vagrant,jkburges/vagrant,denisbr/vagrant,janek-warchol/vagrant,PatOShea/vagrant,loren-osborn/vagrant,doy/vagrant,blueyed/vagrant,fnewberg/vagrant,teotihuacanada/vagrant,invernizzi-at-google/vagrant,doy/vagrant,jberends/vagrant,ianmiell/vagrant,kamazee/vagrant,bdwyertech/vagrant,teotihuacanada/vagrant,kalabiyau/vagrant,tbarrongh/vagrant,fnewberg/vagrant,jean/vagrant,mkuzmin/vagrant,marxarelli/vagrant,benh57/vagrant,mwarren/vagrant,blueyed/vagrant,Endika/vagrant,patrys/vagrant,wangfakang/vagrant,tomfanning/vagrant,Avira/vagrant,sax/vagrant,PatrickLang/vagrant,bshurts/vagrant,wangfakang/vagrant,crashlytics/vagrant,sax/vagrant,taliesins/vagrant,bshurts/vagrant,patrys/vagrant,sni/vagrant,ArloL/vagrant,vamegh/vagrant,Chhunlong/vagrant,zsjohny/vagrant,carlosefr/vagrant,vamegh/vagrant,taliesins/vagrant,darkn3rd/vagrant,jhoblitt/vagrant,justincampbell/vagrant,chrisvire/vagrant,mitchellh/vagrant,aaam/vagrant,kamigerami/vagrant,Sgoettschkes/vagrant,tomfanning/vagrant,fnewberg/vagrant,jfchevrette/vagrant,zsjohny/vagrant,bdwyertech/vagrant,kamigerami/vagrant,lukebakken/vagrant,lonniev/vagrant,gitebra/vagrant,tbriggs-curse/vagrant,tschortsch/vagrant,dhoer/vagrant,aneeshusa/vagrant,jfchevrette/vagrant,bheuvel/vagrant,janek-warchol/vagrant,genome21/vagrant,Sgoettschkes/vagrant,stephancom/vagrant,benh57/vagrant,apertoso/vagrant,ArloL/vagrant,aaam/vagrant,dustymabe/vagrant,jtopper/vagrant,tjanez/vagrant,tbarrongh/vagrant,philoserf/vagrant,kalabiyau/vagrant,dustymabe/vagrant,jfchevrette/vagrant,blueyed/vagrant,invernizzi-at-google/vagrant,jean/vagrant,mwarren/vagrant,janek-warchol/vagrant,teotihuacanada/vagrant,signed8bit/vagrant,carlosefr/vagrant,johntron/vagrant,jberends/vagrant,ianmiell/vagrant,genome21/vagrant,mpoeter/vagrant,tomfanning/vagrant,signed8bit/vagrant,jmanero/vagrant,mwrock/vagrant,doy/vagrant,apertoso/vagrant,genome21/vagrant,chrisroberts/vagrant,mwrock/vagrant,doy/vagrant,tbriggs-curse/vagrant,nickryand/vagrant,dharmab/vagrant,mwarren/vagrant,kamigerami/vagrant,benizi/vagrant,nickryand/vagrant,justincampbell/vagrant,gbarberi/vagrant,aaam/vagrant,tbarrongh/vagrant,jean/vagrant,kamazee/vagrant,petems/vagrant,TheBigBear/vagrant,bdwyertech/vagrant,crashlytics/vagrant,gbarberi/vagrant,patrys/vagrant,apertoso/vagrant,mkuzmin/vagrant,benizi/vagrant,myrjola/vagrant,bryson/vagrant,mitchellh/vagrant,justincampbell/vagrant,benizi/vagrant,zsjohny/vagrant,muhanadra/vagrant,darkn3rd/vagrant,marxarelli/vagrant,h4ck3rm1k3/vagrant,wangfakang/vagrant,Chhunlong/vagrant,lukebakken/vagrant,chrisroberts/vagrant,pwnall/vagrant