Added a remark to uncomment for e-mail notify

README.md

@@ -17,7 +17,7 @@ If using remote repositories mount your .ssh to /root/.ssh within the container.
 
 If you want to mail the results from cron:
 * Add your mail relay details to the [env file](.env.template) or mount your own [msmtprc](https://wiki.alpinelinux.org/wiki/Relay_email_to_gmail_(msmtp,_mailx,_sendmail) to `/etc/msmtprc`
-* Add add your mail address to crontag.txt e.g. `MAILTO=log@example.com`
+* Add add your mail address to crontag.txt and uncomment the line, e.g. `MAILTO=log@example.com`
 
 ### Example run command
 ```