added the github repo adress that we presumably use

MalteKurz · MalteKurz · commit ed82c59b2714 · 2020-12-17T13:51:37.000+01:00
diff --git a/aws_lambda_app/template.yaml b/aws_lambda_app/template.yaml
@@ -11,7 +11,9 @@ Metadata:
     LicenseUrl: ../LICENSE
     ReadmeUrl: ../README.md
     Labels: ['machine-learning', 'python', 'ml', 'scikit-learn']
+    HomePageUrl: https://github.com/DoubleML/doubleml-serverless
     SemanticVersion: 0.0.1
+    SourceCodeUrl: https://github.com/DoubleML/doubleml-serverless
 
 Globals:
   Function:
