Use sentence-case for the Verified Access Mode heading

Matches the sentence-case convention used by this file's other
numbered step headings.

Author: llewis1234

tutorials/connect-google-workspace-to-smallstep.mdx

@@ -93,7 +93,7 @@ After saving the Google Workspace connection, you will see settings for your int
     - Choose **Add**
 5. Repeat Step 4 for each of the certificates you downloaded
 
-### 5. Configure Verified Access Mode
+### 5. Configure verified access mode
 
 1. In Google Workspace, visit [Devices → Chrome → Settings](https://admin.google.com/ac/chrome/settings/device).
 2. Select **Device settings**