message: readme.cpp.md: updated example name for iotdk api pages
diff: @@ -15,7 +15,7 @@ sensor in order to reduce load when doing multiple reads to sensor data.
  ### Example
  A sensor/actuator is expected to work as such (here is the servo ES08A API):
  -@snippet es08a.cxx Interesting
  +@snippet servo-es08a.cxx Interesting
  However implementation and API design is completely up to the developer, some
  enumerable sensors for example may provide much clever instantiation. Displays
  