[SSL] Explain multiple CDN limitation and create caveats section (#25391)

* Explain why not multiple CDN and group under new caveats section

* Apply suggestion from code review

Co-authored-by: Jun Lee <[email protected]>

---------

Co-authored-by: Jun Lee <[email protected]>

Author: RebeccaTamachiro

src/content/docs/ssl/edge-certificates/changing-dcv-method/methods/delegated-dcv.mdx

@@ -30,13 +30,15 @@ You should use Delegated DCV when all of the following conditions are true:
 - Your zone is using a [partial DNS setup](/dns/zone-setups/partial-setup/).
 - Cloudflare is not already [performing DCV automatically](/ssl/edge-certificates/changing-dcv-method/).
 - Your zone is using an [Advanced certificate](/ssl/edge-certificates/advanced-certificate-manager/).
-- Your zone is not using multiple CDN providers.
 - The Certificate Authority is either Google Trust Services, SSL.com, or Let's Encrypt
 
-:::note[Delegated DCV and origin certificates]
+### Aspects to keep in mind
 
-As explained in the [announcement blog post](https://blog.cloudflare.com/introducing-dcv-delegation/), currently, you can only delegate DCV to one provider at a time. If you also issue publicly trusted certificates for the same hostname for your [origin server](/ssl/concepts/#origin-certificate), this will no longer be possible. You can use [Cloudflare origin CA certificates](/ssl/origin-configuration/origin-ca/) instead.
-:::
+As explained in the [announcement blog post](https://blog.cloudflare.com/introducing-dcv-delegation/), currently, you can only delegate DCV to one provider at a time. This means:
+
+- If you also issue publicly trusted certificates for the same hostname for your [origin server](/ssl/concepts/#origin-certificate), this will no longer be possible. You can use [Cloudflare origin CA certificates](/ssl/origin-configuration/origin-ca/) instead.
+
+- If your zone is using multiple CDN providers, you might want to use an alternative [method](/ssl/edge-certificates/changing-dcv-method/methods/). This is because, once the DCV delegation is configured for Cloudflare, only Cloudflare will be able to perform DCV on your behalf, blocking your external CDN providers from doing the same.
 
 ## Setup