Update README.md

Many customers head to sagemaker and run notebooks but forget to attach the policy to sagemaker execution role. Adding this simple in readme helps customers to quickly get onboard and run the notebooks.

README.md

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 Workshop Link: [https://catalog.us-east-1.prod.workshops.aws/workshops/a4bdb007-5600-4368-81c5-ff5b4154f518/en-US/](https://catalog.us-east-1.prod.workshops.aws/workshops/a4bdb007-5600-4368-81c5-ff5b4154f518/en-US)
 
 
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-
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+## IAM Policy for Bedrock
+Following IAM policy should be created to grant access on Bedrock APIs:
+```
+{
+    "Version": "2012-10-17",
+    "Statement": [
+        {
+            "Sid": "Statement1",
+            "Effect": "Allow",
+            "Action": "bedrock:*",
+            "Resource": "*"
+        }
+    ]
+}
+```
+After the policy created, you need to attach the policy to your **Sagemaker Execution Role**. 
 
 ## Using these notebooks