Fix formmating and examples and make text more generic

Author: RebeccaTamachiro

src/content/docs/dns/zone-setups/subdomain-setup/setup/index.mdx

@@ -68,18 +68,9 @@ Although the how-to guides in this documentation are focused on both parent doma
 
 ## SSL/TLS certificates
 
-### Troubleshooting Certificate Validation
+If a certificate is already active on the child zone for a specific hostname (`subdomain.example.com`), any certificate pack containing that exact hostname in the parent zone (`example.com`) will fail validation.
 
-This section addresses common issues where Edge Certificate provisioning appears to be stuck or failing. In the context of Subdomain Setup, these failures are often **expected behaviors** due to conflicts in domain hierarchy and delegation.
-
-* **Conflict 1: Active Child Zone Certificate Blocks Parent Zone Validation**
-    If a certificate is already **active on the child zone** for a specific hostname (e.g., `subdomainA.example.com`), any certificate pack containing that exact hostname in the **parent zone** (e.g., for `example.com`) will **fail validation**.
-    * **Why it happens:** This is the **expected behavior** to ensure the child zone's certificate takes precedence. The active certificate in the child zone prevents the parent zone from completing Domain Control Validation (DCV) for that specific hostname.
-
-* **Conflict 2: Parent Zone Wildcard DNS Record Blocks Child Zone Validation**
-    If a **wildcard DNS record** exists in the **parent zone** (e.g., `*.test.example.com`) that covers a hostname in the **child zone** (e.g., `subdomainA.test.example.com`), the Domain Control Validation (DCV) process for a certificate in the child zone will **fail**.
-    * **Why it happens:** The wildcard record in the parent zone intercepts the DCV query, causing it to resolve against the parent zone's configuration instead of the child zone's, thus blocking validation.
-    * **Resolution:** To successfully provision the certificate in the child zone, you must **pause or remove the conflicting wildcard DNS record** in the parent zone temporarily.
+Also, if a wildcard DNS record exists in the parent zone (`*.example.com`) that covers a hostname in the child zone (`subdomain.example.com`), the [domain control validation (DCV) process](/ssl/edge-certificates/changing-dcv-method/) for a certificate in the child zone will fail. To successfully provision the certificate in the child zone, you must pause or remove the conflicting wildcard DNS record on the parent zone.
 
 ## Access applications