Docs vuepress (#476)

Convert docs to vuepress

docs/use/sensors.md

@@ -0,0 +1,15 @@
+# Sensors
+Subscribe to all the messages with mosquitto or open your MQTT client software:
+
+`    sudo mosquitto_sub -t +/# -v`
+
+### ADC
+The value is between 0 and 1024 and is tranmitted via Mqtt when it changes. 
+`home/OpenMQTTGateway/DHTtoMQTT {"value":543}`
+
+### DHT
+You will receive every TimeBetweenReadingDHT (set into config_DHT.h) the DHT measurement (30s per default).
+
+`home/OpenMQTTGateway/DHTtoMQTT {"temp":21,"hum":51}`
+
+If you want to don't resend value when it is the same you can set dht_always = false in config_DHT.h