[DNS] The max number of linked peers per zone

for cloudflare-as-secondary

Author: kyouheicf

src/content/docs/dns/zone-setups/zone-transfers/cloudflare-as-secondary/setup.mdx

@@ -81,6 +81,9 @@ To create a secondary zone using the dashboard:
    Cloudflare will not use the REFRESH value inside the SOA record that is served by your primary provider. Instead the value of zone refresh configured for your secondary zone on Cloudflare will be used to determine the interval after which the SOA serial of the primary zone will be checked for changes.
    :::
 7. Select the peer server you [previously created](#2-create-peer-server). If needed, you can link more than one peer server to a zone.
+   :::note[The max number of linked peers per zone]
+   You cannot have more than 30 peers linked to the zone.
+   :::
 8. Click **Continue**.
 9. Review the list of transferred records and click **Continue**.
    :::note