docs: tutorials: dataflows: chatbot: Fix link to examples folder

Signed-off-by: John Andersen <[email protected]>

Author: pdxjohnny

docs/tutorials/dataflows/chatbot.rst

@@ -19,7 +19,7 @@ messages which are directed to our bot.
 .. note::
 
     All the code for this example is located under the
-    `examples/dataflow/chatbot <https://github.com/intel/dffml/blob/master/examples/examples/dataflow/chatbot>`_
+    `examples/dataflow/chatbot <https://github.com/intel/dffml/blob/master/examples/dataflow/chatbot>`_
     directory of the DFFML source code.
 
 We'll write the operations for this dataflow in operations.py