Fix grammar in mutation docs
Fix grammar in mutation docs

josephsavona/relay,wincent/relay,wincent/relay,lucasterra/relay,AnSavvides/relay,venepe/relay,kassens/relay,jtthrillson/relay,jshanson7/relay,beni55/relay,kassens/relay,yungsters/relay,AbhinavJain13/relay,u9520107/relay,voideanvalue/relay,gabelevi/relay,almasakchabayev/relay,ide/relay,dmfrancisco/relay,freiksenet/relay,janusnic/relay,xuorig/relay,xuorig/relay,andimarek/generic-relay,dmfrancisco/relay,quazzie/relay,xuorig/relay,IlyasM/relay,wincent/relay,NevilleS/relay,Sandreu/relay,AnSavvides/relay,Sandreu/relay,wincent/relay,Shopify/relay,venepe/relay,niklasvh/relay,jshanson7/relay,chirag04/relay,kangkot/relay,atxwebs/relay,kassens/relay,kangkot/relay,zpao/relay,bneiluj/relay,jtthrillson/relay,vedmalex/relay,atxwebs/relay,quazzie/relay,quazzie/relay,atxwebs/relay,NevilleS/relay,rosskevin/relay,zpao/relay,jeffmo/relay,vedmalex/relay,iamchenxin/relay,andimarek/generic-relay,michaelchum/relay,voideanvalue/relay,heracek/relay,NevilleS/relay,beni55/relay,u9520107/relay,voideanvalue/relay,wangcan2014/relay,facebook/relay,jeffmo/relay,xuorig/relay,TobiasBales/relay,janusnic/relay,supriyantomaftuh/relay,Aweary/relay,iamchenxin/relay,pandoraui/relay,benjaminogles/relay,vjeux/relay,kassens/relay,benjaminogles/relay,tmitchel2/relay,iamchenxin/relay,jshanson7/relay,wangcan2014/relay,cpojer/relay,Aweary/relay,josephsavona/relay,u9520107/relay,ide/relay,cpojer/relay,supriyantomaftuh/relay,josephsavona/relay,cesarandreu/relay,IlyasM/relayWorking,freiksenet/relay,facebook/relay,tmitchel2/relay,mcanthony/relay,voideanvalue/relay,andimarek/generic-relay,gabelevi/relay,pandoraui/relay,vjeux/relay,magnus-lycka/relay,iamchenxin/relay,apalm/relay,bneiluj/relay,TobiasBales/relay,cesarandreu/relay,mcanthony/relay,mroch/relay,Shopify/relay,voideanvalue/relay,kassens/relay,michaelchum/relay,yungsters/relay,voideanvalue/relay,AbhinavJain13/relay,facebook/relay,wincent/relay,almasakchabayev/relay,bneiluj/relay,zpao/relay,chentsulin/relay,jeffmo/relay,atxwebs/relay,IlyasM/relayWorking,niklasvh/relay,lucasterra/relay,magnus-lycka/relay,xymostech/relay,forter/generic-relay,janusnic/relay,gabelevi/relay,cesarandreu/relay,lucasterra/relay,apalm/relay,tmitchel2/relay,heracek/relay,apalm/relay,mroch/relay,magnus-lycka/relay,freiksenet/relay,IlyasM/relay,Shopify/relay,TobiasBales/relay,chirag04/relay,rosskevin/relay,AnSavvides/relay,dbslone/relay,xuorig/relay,wangcan2014/relay,cpojer/relay,chentsulin/relay,dmfrancisco/relay,vedmalex/relay,mcanthony/relay,ide/relay,chirag04/relay,beni55/relay,xuorig/relay,venepe/relay,xymostech/relay,niklasvh/relay,IlyasM/relayWorking,vjeux/relay,facebook/relay,Aweary/relay,facebook/relay,facebook/relay,mroch/relay,almasakchabayev/relay,yungsters/relay,wincent/relay,chentsulin/relay,benjaminogles/relay,kangkot/relay,heracek/relay,dbslone/relay,jtthrillson/relay,kassens/relay,michaelchum/relay,cpojer/relay,xymostech/relay