Fix README example

README.md

@@ -22,19 +22,16 @@ A sample configuration to setup ingestion of data for a tag to Wendelin:
   password  <your_wendelin_password>
   use_keep_alive  <true or false>
 
-  # all parameters of BufferedOutput & Output classes are supported too, e.g.
-  # `buffer_type`, `flush_interval`, `num_threads`, `log_level`, etc - see
-  # their code near:
-  #
-  #     https://github.com/fluent/fluentd/blob/aa79a4cd16bdab3190dd8fe8f5e2dc92a69c72ea/lib/fluent/compat/output.rb#L219
-  #
-  # logging setup description:
-  #
-  #   http://docs.fluentd.org/articles/logging
-
-  buffer_type       memory
-  #buffer_path       "#{ENV['HOME']/var}"
-  flush_interval    5s
+  <buffer>
+    # For setting the behaviour of the buffer a wide range of parameters
+    # are available. The description for the parameters can be found in
+    # the fluentd documentation:
+    #   https://docs.fluentd.org/output#buffering-retrying-parameters
+    flush_mode interval
+    flush_interval 5s
+    @type memory
+    path "#{ENV['HOME']/var}"
+  </buffer>
 </match>
 ```