updated readme

Author: AWSChris

python/example_code/bedrock/README.md

@@ -39,6 +39,14 @@ python -m pip install -r requirements.txt
 
 - [Hello Amazon Bedrock](hello_bedrock.py#L5) (`ListFoundationModels`)
 
+#### Hello Amazon Bedrock
+
+This example shows you how to get started using Amazon Bedrock.
+
+```
+python hello_bedrock.py
+```
+
 
 ### Single actions