diff --git a/README.md b/README.md
index 4f1e120..884dc2d 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,11 @@
 idDHT11
 =======
 
-Interrupt driven DHT11 library
\ No newline at end of file
+Interrupt driven DHT11 library
+
+VERSION:   0.1
+PURPOSE: 	Interrupt driven Lib for DHT11 with Arduino.
+LICENCE:	GPL v3 (http://www.gnu.org/licenses/gpl.html)
+DATASHEET: http://www.micro4you.com/files/sensor/DHT11.pdf
+	
+Based on DHT11 library: http://playground.arduino.cc/Main/DHT11Lib