Fixed language markup in Node samples
Fixed language markup in Node samples

yvonnewilson/docs,hamzawi06/docs,khorne3/docs,Annyv2/docs,sandrinodimattia/docs,Annyv2/docs,khorne3/docs,Annyv2/docs,hamzawi06/docs,jeffreylees/docs,Catografix/docs,sandrinodimattia/docs,yvonnewilson/docs,yvonnewilson/docs,hamzawi06/docs,Catografix/docs,jeffreylees/docs,Catografix/docs,jeffreylees/docs,auth0/docs,auth0/docs,miparnisari/docs,sandrinodimattia/docs,khorne3/docs,auth0/docs