added comma

Author: dannyevers

articles/marketplace/dynamics-365-operations-offer-setup.md

@@ -39,7 +39,7 @@ Review [Plan a Dynamics 365 offer](marketplace-dynamics-365.md). It will explain
 1. Enter an **Offer ID**. This is a unique identifier for each offer in your account.
 
     - This ID is visible to customers in the web address for the offer and in Azure Resource Manager templates, if applicable.
-    - Use only lowercase letters and numbers. The ID can include hyphens and underscores, but no spaces and is limited to 40 characters. For example, if you enter **test-offer-1**, the offer web address will be `https://azuremarketplace.microsoft.com/marketplace/../test-offer-1`.
+    - Use only lowercase letters and numbers. The ID can include hyphens and underscores, but no spaces, and is limited to 40 characters. For example, if you enter **test-offer-1**, the offer web address will be `https://azuremarketplace.microsoft.com/marketplace/../test-offer-1`.
     - The Offer ID can't be changed after you select **Create**.
 
 1. Enter an **Offer alias**. This is the name used for the offer in Partner Center.