Update README.md

Author: huksley

README.md

@@ -3,7 +3,7 @@ Graylog2 output plugin Syslog
 
 Based on bundled with Graylog syslog4j library.
 
-Allows to send syslog messages with TCP or UDP formatted as plain text (classic), structured syslog or CEF.
+Allows to send syslog messages with TCP or UDP formatted as plain text (classic), structured syslog (rfc 5424) or CEF.
 
 ## How to build
 
@@ -15,3 +15,13 @@ Download GraylogSyslogOutput.jar from releases and put inside /graylog-1.0.1/plu
 Restart Graylog2
 Create new output globally or inside stream.
 
+## Links
+
+https://tools.ietf.org/html/rfc5424
+https://github.com/Graylog2
+http://blog.rootshell.be/2011/05/11/ossec-speaks-arcsight/
+https://groups.google.com/forum/#!topic/ossec-list/3guXmHJYHtY
+http://habrahabr.ru/post/151631/
+http://www.syslog4j.org/
+https://www.graylog.org/resources/gelf-2/
+http://docs.graylog.org/en/1.0/pages/plugins.html