adding support for *dev-question labels

.github/commands.yml

@@ -7,6 +7,12 @@
             action: 'close',
             comment: "Please ask your question on [StackOverflow](https://aka.ms/vscodestackoverflow). We have a great community over [there](https://aka.ms/vscodestackoverflow). They have already answered thousands of questions and are happy to answer yours as well. See also our [issue reporting](https://aka.ms/vscodeissuereporting) guidelines.\n\nHappy Coding!"
         },
+        {
+            type: 'label',
+            name: '*dev-question',
+            action: 'close',
+            comment: "We have a great developer community [over on slack](https://aka.ms/vscode-dev-community) where extension authors help each other. This is a great place for you to ask questions and find support.\n\nHappy Coding!"
+        },
         {
             type: 'label',
             name: '*extension-candidate',