Update apple-mdm-push-certificate-get.md

Added expected file format to line 79 so that people know which file format to use when uplading (in the case that file was downloaded in a different format).

Author: lenewsad

memdocs/intune/enrollment/apple-mdm-push-certificate-get.md

@@ -65,9 +65,6 @@ Select **Download your CSR** to download and save the request file locally. The
 6. Select **Upload**. 
 7. On the confirmation page, select **Download**.  The certificate file (.pem) downloads to your device. Save this file for later.   
 
-> [!NOTE]
-> The certificate may download as a .cer file. Rename this file to .pem before uploading to Microsoft Endpoint Manager.
-
 > [!NOTE]
 > The certificate is associated with the Apple ID used to create it. As a best practice, use a company email address as your Apple ID and make sure the mailbox is monitored by more than one person, such as by a distribution list. Avoid using a personal Apple ID.  
 
@@ -79,7 +76,7 @@ Return to the admin center and enter your Apple ID as a reminder for when you ne
 
 ### Step 5. Browse to your Apple MDM push certificate to upload
 1. Select the **Folder** icon. 
-2. Select the certificate file you downloaded in the Apple portal. 
+2. Select the certificate file (.pem) you downloaded in the Apple portal. 
 3. Select **Upload** to finish configuring the MDM push certificate. 
 
 ## Renew Apple MDM push certificate