Update templates.md (#6)

website/docs/templates/templates.md

@@ -24,10 +24,33 @@ keywords:
 
 - None
 
-## Adding a new template
+## Contributing (a template)
 
-Fork the base template, following the required structure and adapting the template. Make a PR here to add it to the appropriate list.
+Copy the base template, adapting it for your scenario and following all guidelines below. Make a PR here to add it to the appropriate list.
+
+### Principle
+
+Less but better.
+
+### Spirit
+
+The spirit of AML templates includes:
+
+- frequent and comprehensive testing
+- clear separation of cloud code (job definition) and user code
+- users can get up and running in 10 minutes with their own data/code
+
+### General rules
+
+- minimal prose
+- minimalist code
+- workflows re-run without failing at least daily
 
 ### Enforced naming
 
+- repo should be published to https://github.com/Azure
 - repo should be named `azureml-template-*`, using hyphens to separate words
+
+### Additional guidance
+
+It is best to follow the guidance from the [example repo](https://github.com/Azure/azureml-examples) where applicable.