fix link

Author: kimsauce

docs/platform-services/automation-service/app-central/integrations/imap.md

@@ -158,7 +158,7 @@ The final playbook looks like this:<br/><img src={useBaseUrl('/img/platform-serv
 * **IP**: ([0-9]+(?:\.[0-9]+){3})
 * **Email**: [\w\.-]+@[\w\.-]+
 * **URL**: `(?i)(?:(?:https?|ftp):\/\/|www\.|ftp\.)(?:\([-A-Z0-9+&@#\/%=~\_|$?!:,.]\*\)|[-A-Z0-9+&@#\/%=~\_|$?!:,.])\*(?:\([-A-Z0-9+&@#\/%=~\_|$?!:,.]\*\)|[A-Z0-9+&@#\/%=~\_|$])`
-* **Domain**: (?:[a-zA-Z0-9](?:[a-zA-Z0-9\-]{,61}[a-zA-Z0-9])?\.)\*[a-zA-Z]{2,6}(?:[a-zA-Z0-9](?:[a-zA-Z0-9\-]{0,61}[a-zA-Z0-9])?\.)+[a-zA-Z]{2,6}
+* **Domain**: `(?:[a-zA-Z0-9](?:[a-zA-Z0-9\-]{,61}[a-zA-Z0-9])?\.)\*[a-zA-Z]{2,6}(?:[a-zA-Z0-9](?:[a-zA-Z0-9\-]{0,61}[a-zA-Z0-9])?\.)+[a-zA-Z]{2,6}`
 * **MD5**: \b[0-9a-fA-F]{32}\b
 * **SHA1**: \b[0-9a-fA-F]{40}\b
 * **SHA256**: \b[0-9a-fA-F]{64}\b