Fix typo, add Discord under contact.

domains/ruby.json

@@ -3,9 +3,10 @@
     "repo": "https://github.com/hopefulruby/hopefulruby.github.io/",
     "owner": {
         "username": "hopefulruby",
-        "email": "rubii.is.cool@outlook.com"
+        "email": "rubii.is.cool@outlook.com",
+        "discord": "669710912806060046"
     },
     "record": {
-        "CNAME": "hopefulruby.github.io/"
+        "CNAME": "hopefulruby.github.io"
     }
 }