Add mention to DCV in relation to renewal as well

Author: RebeccaTamachiro

src/content/docs/ssl/edge-certificates/universal-ssl/enable-universal-ssl.mdx

@@ -52,4 +52,6 @@ Once you enable Universal SSL, you can review the [activation status](/ssl/refer
 
 ## Universal SSL renewal
 
-<Render file="universal-ssl-validity" />
+<Render file="universal-ssl-validity" />
+
+If you are on a [partial setup](/ssl/edge-certificates/universal-ssl/enable-universal-ssl/#partial-dns-setup), make sure [Domain control validation (DCV)](/ssl/edge-certificates/changing-dcv-method/) is configured correctly. Refer to [Troubleshooting DCV](/ssl/edge-certificates/changing-dcv-method/troubleshooting/) for further help.

src/content/docs/ssl/edge-certificates/universal-ssl/index.mdx

@@ -30,4 +30,4 @@ If your website or application requires an SSL certificate prior to migrating tr
 ## Related resources
 
 - [Backup certificates](/ssl/edge-certificates/backup-certificates/)
-- [Validity period and renewal](/ssl/reference/certificate-validity-periods/#universal-ssl)
+- [Validity period and renewal](/ssl/reference/certificate-validity-periods/#universal-ssl)