Update quickstart-create-resources.md

added a note in the scenario the creator needs to leverage existing resources, as this is currently not supported via the aml portal, rather only via azure portal.

Author: yodobrin

articles/machine-learning/quickstart-create-resources.md

@@ -42,6 +42,8 @@ If you don't yet have a workspace, create one now:
    Region | Select the Azure region closest to your users and the data resources to create your workspace.
 1. Select **Create** to create the workspace
 
+> Note: A workspace will be created with required resources, in the scenario you would like to reuse resources such as: Storage Account, Azure Container Registry, Azure KeyVault or Application Insights, use the azure [portal](https://ms.portal.azure.com/#create/Microsoft.MachineLearningServices) for that.
+
 ## Create compute instance
 
 You could install Azure Machine Learning on your own computer.  But in this quickstart, you'll create an online compute resource that has a development environment already installed and ready to go.  You'll use this online machine, a *compute instance*, for your development environment to write and run code in Python scripts and Jupyter notebooks.