Added step to "Select Save" once Add the cert.

The document miss to point out that we need to Save the certificate once after Adding it.

Author: SherrySahni

articles/api-management/api-management-howto-mutual-certificates.md

@@ -75,7 +75,11 @@ To add a key vault certificate to API Management:
     > The identity needs permissions to get and list certificate from the key vault. If you haven't already configured access to the key vault, API Management prompts you so it can automatically configure the identity with the necessary permissions.
 1. Select **Add**.
 
+
+
     :::image type="content" source="media/api-management-howto-mutual-certificates/apim-client-cert-kv.png" alt-text="Add key vault certificate":::
+    
+2. Select **Save**.
 
 ## Upload a certificate
 
@@ -91,6 +95,9 @@ To upload a client certificate to API Management:
 
     :::image type="content" source="media/api-management-howto-mutual-certificates/apim-client-cert-add.png" alt-text="Upload client certificate":::
 
+
+8. Select **Save**.
+
 After the certificate is uploaded, it shows in the **Certificates** window. If you have many certificates, make a note of the thumbprint of the desired certificate in order to configure an API to use a client certificate for [gateway authentication](#configure-an-api-to-use-client-certificate-for-gateway-authentication).
 
 > [!NOTE]
@@ -103,7 +110,7 @@ After the certificate is uploaded, it shows in the **Certificates** window. If y
 1. Select an API from the list. 
 2. In the **Design** tab, select the editor icon in the **Backend** section.
 3. In **Gateway credentials**, select **Client cert** and select your certificate from the dropdown.
-1. Select **Save**.
+  8. Select **Save**.
 
     :::image type="content" source="media/api-management-howto-mutual-certificates/apim-client-cert-enable-select.png" alt-text="Use client certificate for gateway authentication":::