Fix  Node Pattern documentation
Fix  Node Pattern documentation

There was an unclosed code block that was messing up everything below "` for descendants"
jmks/rubocop,bbatsov/rubocop,rrosenblum/rubocop,maxjacobson/rubocop,tdeo/rubocop,tejasbubane/rubocop,tdeo/rubocop,jmks/rubocop,tdeo/rubocop,maxjacobson/rubocop,maxjacobson/rubocop,deivid-rodriguez/rubocop,tejasbubane/rubocop,rrosenblum/rubocop,jmks/rubocop,tejasbubane/rubocop,rrosenblum/rubocop,deivid-rodriguez/rubocop,bbatsov/rubocop,deivid-rodriguez/rubocop