Update nsubj.md
Update nsubj.md

removed example 'ar mhaith leat teach a cheananch?' as this no longer pertains to the nsubj page but csubj:cop
UniversalDependencies/docs,UniversalDependencies/docs,UniversalDependencies/docs,UniversalDependencies/docs,UniversalDependencies/docs,UniversalDependencies/docs