Fix typo from node_modules to node-modules

Thanks to @arcresu for pointing out!

Node.gitignore

@@ -23,5 +23,5 @@ coverage
 build/Release
 
 # Dependency directory
-# https://docs.npmjs.com/misc/faq#should-i-check-my-node_modules-folder-into-git
+# https://docs.npmjs.com/misc/faq#should-i-check-my-node-modules-folder-into-git
 node_modules