link to GH discussions from FAQ

Author: torresmateo

pages/home/faq.mdx

@@ -97,3 +97,10 @@ if (auth_response.status !== "completed") {
 ```
 </Tabs.Tab>
 </Tabs>
+
+## Your question is not here?
+
+Please go to the [discussions page on
+GitHub](https://github.com/ArcadeAI/arcade-ai/discussions). Someone else may
+have asked something similar already. If not, please start a new discussion and
+we'll get to it as soon as possible.