Update tutorial-create-user-flows.md to add step

Adding additional required step to "Register the ProxyIdentityExperienceFramework application" section.

Author: hbrowne22

articles/active-directory-b2c/tutorial-create-user-flows.md

@@ -212,6 +212,7 @@ Next, specify that the application should be treated as a public client:
 1. Select **Save**.
 1. Ensure that **"allowPublicClient": true** is set in the application manifest:
     1. In the left menu, under **Manage**, select **Manifest** to open application manifest.
+    1. Switch from the **Microsoft Graph App Manifest (New)** tab to the **AAD Graph App Manifest (Deprecating Soon)** tab.
     1. Find **allowPublicClient** key and ensure its value is set to **true**.
 
 Now, grant permissions to the API scope you exposed earlier in the *IdentityExperienceFramework* registration: