Update articles/active-directory-b2c/phone-based-mfa.md

Co-authored-by: Kenga Derdus <[email protected]>

Author: bernawy

articles/active-directory-b2c/phone-based-mfa.md

@@ -147,7 +147,7 @@ To help prevent fraudulent sign-ups, remove any country/region codes that do not
 > [!IMPORTANT]
 >Add the code in step 2 to the _relying party policy_ to enforce country/region code restrictions on the server side. You must not define these elements only in parent policies; put them in the relying party policy.
 
-2. In the `BuildingBlocks` section of this policy file, add the following code. Make sure to include only the country/region codes relevant to your organization:
+1. In the `BuildingBlocks` section of this policy file, add the following code. Make sure to include only the country/region codes relevant to your organization:
 
    ```xml
     <BuildingBlocks>