Linked authentication for AWS in bedrock guardrails doc

Author: berri-teddy

docs/my-website/docs/proxy/guardrails/bedrock.md

@@ -4,6 +4,10 @@ import TabItem from '@theme/TabItem';
 
 # Bedrock Guardrails
 
+:::tip ⚡️
+If you haven't set up or authenticated your Bedrock provider yet, see the [Bedrock Provider Setup & Authentication Guide](../../providers/bedrock.md).
+:::
+
 LiteLLM supports Bedrock guardrails via the [Bedrock ApplyGuardrail API](https://docs.aws.amazon.com/bedrock/latest/APIReference/API_runtime_ApplyGuardrail.html). 
 
 ## Quick Start