Add an example of tailing a file and sending it to Wendelin.

example/to_wendelin.conf

@@ -8,7 +8,6 @@
   port 8888
 </source>
 
-
 # output tag=sensor.** to Wendelin, this will match all HTTP request like so
 # ivan@debian: ~$ curl -X POST -d 'json={"foo1":"bar1"}' http://localhost:8888/default_http_json
 <match default_http_json.**>
@@ -23,3 +22,28 @@
   buffer_type      memory
   flush_interval   5s
 </match>
+
+# tail existing file and send its contents to Wendelin
+<source>
+  @type            tail
+  path             test.log
+  pos_file         test.log.pos
+  tag              fluentd-1
+  <parse>
+    @type none
+  </parse>
+
+</source>
+
+<match fluentd-1>
+  @type            wendelin
+  @id wendelin_out
+  streamtool_uri    <Wendelin_URL>/erp5/portal_ingestion_policies/default_http_json   
+  # TODO ^^^ do not check peer's certificate   
+  user      <your_wendelin_user>   
+  password  <your_wendelin_password>
+
+  use_keep_alive   true  
+  buffer_type      memory
+  flush_interval   5s
+</match>