Remove knx-rf-demo folder and move doc

examples/knx-rf-demo/knx-rf-demo.ino

@@ -1,70 +0,0 @@
-#include <knx.h>
-
-// create macros easy access to group objects
-#define goTemperature knx.getGroupObject(1)
-#define goHumidity knx.getGroupObject(2)
-
-uint32_t cyclSend = 0;
-uint8_t sendCounter = 0;
-long lastsend = 0;
-
-// Entry point for the example
-void setup(void)
-{
-    Serial1.begin(115200);
-    ArduinoPlatform::SerialDebug = &Serial1;
-    delay(1000);
-    Serial1.println("start");
-
-    // read adress table, association table, groupobject table and parameters from eeprom
-    knx.readMemory();
-
-    if (knx.induvidualAddress() == 0)
-      knx.progMode(true);
-
-
-    if (knx.configured())
-    {
-        cyclSend = knx.paramInt(0);
-        Serial1.print("Zykl. send:");
-        Serial1.println(cyclSend);
-        goTemperature.dataPointType(Dpt(9, 1));
-        goHumidity.dataPointType(Dpt(9, 1));
-    }
-
-    // start the framework.
-    knx.start();
-}
-
-// Function that is looped forever
-void loop(void)
-{
-    // don't delay here to much. Otherwise you might lose packages or mess up the timing with ETS
-    knx.loop();
-
-    // only run the application code if the device was configured with ETS
-    if(!knx.configured())
-        return;
-
-    long now = millis();
-    if ((now - lastsend) < 3000)
-        return;
-
-    lastsend = now;
-
-    float temp = 1.2345;
-    float humi = 60.2;
-    String output = String(millis());
-    output += ", " + String(temp);
-    output += ", " + String(humi);
-    Serial1.println(output);
-        
-    if (sendCounter++ == cyclSend)
-    {
-        sendCounter = 0;
-    
-        goTemperature.value(temp);
-        goHumidity.value(humi);
-    }
-
-}