Update SECURITY.md

SECURITY.md

@@ -11,7 +11,7 @@ The following versions of *dns01cf* are currently supported:
 ## Reporting a Vulnerability
 
 If you find a security vulnerability with *dns01cf*, we ask that you please inform us privately by email
-at `team (AT) dns01cf (DOT) com`. Please provide as much detail as you can including steps to reproduce
+at team@dns01cf.com. Please provide as much detail as you can including steps to reproduce
 the vulnerability, and we will do our best to get back to you with a response and (ideally) a solution
 within 30 calendar days. Your interest in supporting *dns01cf* and your understanding of our request
 for responsible disclosure are both greatly appreciated!