correct formatting

Author: equick

README.md

@@ -39,13 +39,13 @@ If logstash has been installed from the logstash repository (http://www.logstash
 3. Copy logstash_modsecurity_patterns to /opt/logstash/patterns/
 4. Give read access to the logstash user on /var/log/httpd/modsec_audit.log
 
-`setfacl -m u:logstash:r /var/log/httpd/modsec_audit.log
+`setfacl -m u:logstash:r /var/log/httpd/modsec_audit.log`
 
 5. Restart the logstash agent
 
-`systemctl restart logstash
+`systemctl restart logstash`
 
 6. Confirm mod_security messages are logged to standard output
 
-`tail -f /var/log/logstash/logstash.stdout
+`tail -f /var/log/logstash/logstash.stdout`