Update README.md

Author: livein21st

README.md

@@ -1,6 +1,10 @@
 # DCD SDK Arduino
 
+This libray allows to connect to dcd hub and update value of thing property provided by property_id.
 
+Currently this library uses MQTT interface to connect to the DCD hub and update particular thing property. In future release there will be more functionality added to create a new property or seatch for exising one.
+
+You can find simple example of updating property values from the example provided in the folder.
 
 # Changelog