fix bad link for error handling (#468)

Author: LeeVaughn

fern/pages/05-guides/deployment.mdx

@@ -17,7 +17,7 @@ subtitle: "Take AssemblyAI to production with these best practices."
   <Card title="Security" icon="shield-check" href="https://assembly.ai/trust">
     Access our Trust Center and security documentation. 
   </Card>
-  <Card title="Error Handling" icon="bug" href="https://github.com/AssemblyAI/cookbook/blob/master/core-transcription/common_errors_and_solutions.md">
+  <Card title="Error Handling" icon="bug" href="/docs/guides/common_errors_and_solutions">
     Learn about common errors and handle them gracefully.
   </Card>
   <Card title="Need Help?" icon="headset" href="https://assembly.ai/support">