api docs

README.md

@@ -47,6 +47,11 @@ Implement this callback function for incoming messages with this footprint:
              bool willRetain, const char *willMessage,
              bool cleanSession);
 
+In the original C++ implementation multiple variants of the ``connect``method are available 
+with less and lesser arguments. Unfortunately, in C this is no option. If you don't care
+about authentication and the whole will stuff you can call it
+
+    mqttConnect(&mqttClient, brokerAddress, brokerPort, clientId, NULL, NULL, NULL, 0, false, NULL, false);
 
 ### Disconnect