Updated Developing Regex in Fail2ban (markdown)

Developing-Regex-in-Fail2ban.md

@@ -80,6 +80,8 @@ and note the value of `'content:'`. This content comes after the `datepattern`;
 
 Note: Please note in 'content': value that there is an extra space at the beginning of that value so be careful with the ‘`^`‘ and make sure it starts with ‘`^ `‘ (note a space after caret symbol.)
 
+In this example, I've opted to use the optional `prefregex` because I know that there is going to be more than one fail-matched pattern.  And don't want to deal with it again later on.
+
 NEW CONFIG FILE
 ===============
 From there on, we will be creating a local-variant of `named-refused.conf` file; all new and modified