Update DOM documentation

lib/docs/scrapers/mdn/dom.rb

@@ -1,6 +1,7 @@
 module Docs
   class Dom < Mdn
 
+    # release = '2021-10-22'
     self.name = 'DOM'
     self.base_url = 'https://developer.mozilla.org/en-US/docs/Web/API'