Added some rows to the readme

README.md

@@ -27,6 +27,15 @@ mkdir transport
 ```
 create file transport/mqtt_router.py
 ```python
+"""
+The dispatch function passes the following kwargs
+endpoint
+client
+user_data
+message
+context: is the named parameters in the path
+?payload_data: is message parsed as json
+"""
 from libmqtt.router import hook_route
 
 @hook_route(('import/data',))  # hooks to given topic/topics
@@ -35,6 +44,14 @@ def import_data(*args, **kwargs):  # pylint: disable=unused-argument
     csv = kwargs.get('message').payload.decode("utf-8")
     ImportCsv(data=csv)
     kwargs['client'].publish('hello/world', 'message can be string or json')
+
+
+# sending {"gender": "man"} to hello/bilbo results in
+@hook_route(('hello/(?P<name>+)',))  # hooks to given hello/#
+def import_data(*args, **kwargs):  # pylint: disable=unused-argument
+    """sending {"gender": "man} to hello/bilbo results in"""
+    context = kwargs.get('context', {})  # is {"name": "bilbo"}
+    data = kwargs.get('payload_data', {})  # is {"gender": "man"}
 ```
 
 ### Send messages
@@ -56,4 +73,4 @@ def import_data(*args, **kwargs):  # pylint: disable=unused-argument
 ### Testing
 * [flake8](http://flake8.pycqa.org/en/latest/)
 * [pylint](https://docs.pylint.org)
-* [setuptools-lint](https://pypi.python.org/pypi/setuptools-lint)
\ No newline at end of file
+* [setuptools-lint](https://pypi.python.org/pypi/setuptools-lint)