updat readme

enrollment-management/app/boto3clients.py

@@ -0,0 +1,13 @@
+import os
+
+import boto3
+
+
+def get_dynamodb_client():
+    if os.getenv('AWS_LAMBDA_FUNCTION_NAME'):
+        return boto3.client('dynamodb')
+
+    return boto3.client('dynamodb', endpoint_url='http://localhost:8000')
+
+
+dynamodb_client = get_dynamodb_client()