docs(DLB): update doc with info on zero worker nodes MTA-5131

Author: SamyOubouaziz

managed-services/data-lab/how-to/create-data-lab.mdx

@@ -30,7 +30,11 @@ Distributed Data Lab is a product designed to assist data scientists and data en
 
 3. Complete the following steps in the wizard:
     - Choose an Apache Spark version from the drop-down menu.
-    - Set up your worker nodes by selecting a configuration, and by indicating the desired number of Apache Spark nodes.
+    - Select a worker node configuration.
+    - Enter the desired number of worker nodes.
+      <Message type="note">
+      Provisioning zero worker nodes lets you retain and access you cluster and notebook configurations, but will not allow you to run calculations.
+      </Message>
     - Optionally, choose an Object Storage bucket in the desired region to store the data source and results.
     - Enter a name for your Data Lab.
     - Optionally, add a description and/or tags for your Data Lab.

managed-services/data-lab/quickstart.mdx

@@ -41,7 +41,11 @@ The notebook, although capable of performing some local computations, primarily
 
 3. Complete the following steps in the wizard:
     - Choose an Apache Spark version from the drop-down menu.
-    - Set up your worker nodes by selecting a configuration, and by indicating the desired number of Apache Spark nodes.
+    - Select a worker node configuration.
+    - Enter the desired number of worker nodes.
+      <Message type="note">
+      Provisioning zero worker nodes lets you retain and access you cluster and notebook configurations, but will not allow you to run calculations.
+      </Message>
     - Optionally, choose an Object Storage bucket as your source of data and the place to store the output of your operations.
     - Enter a name for your Data Lab.
     - Optionally, add a description and/or tags for your Data Lab.