README.md in fluent-plugin-elb-access-log-0.2.5 vs README.md in fluent-plugin-elb-access-log-0.3.0

@@ -64,9 +64,12 @@
   "elb_status_code":200,
   "backend_status_code":200,
   "received_bytes":0,
   "sent_bytes":3,
   "request":"GET http://hoge-1876938939.ap-northeast-1.elb.amazonaws.com:80/ HTTP/1.1",
+  "user_agent":"curl/7.30.0",
+  "ssl_cipher":"-",
+  "ssl_protocol":"-",
   "request.method":"GET",
   "request.uri":"http://hoge-1876938939.ap-northeast-1.elb.amazonaws.com:80/",
   "request.http_version":"HTTP/1.1",
   "request.uri.scheme":"http",
   "request.uri.user":null,