Add run example

README.md

@@ -4,3 +4,9 @@
 ```bash
 sudo apt install -y libqt5serialport5-dev
 ```
+
+# Run example
+For 1 data per line
+```bash
+rosrun serial_temperatures publishers _count:=1 _port:=/dev/ttyUSB0 _topic:=/ram/sensors/temperature_adafruit/
+```