Make tested against a bulleted list

Author: Jonathan Claudius

documentation/modules/exploit/linux/ssh/mercurial_ssh_exec.md

@@ -4,7 +4,7 @@
 
 This module was successfully tested against:
 
-Kali Linux, HG 4.0 and a customized hg-ssh (to simulate custom hg-ssh wrappers which have weak repo validation)
+- Kali Linux, HG 4.0 and a customized hg-ssh (to simulate custom hg-ssh wrappers which have weak repo validation)
 
 ## Vulnerable Server Setup Steps