[doc] http -> https

Rotzbua · web-flow · commit 8f5558ac7894 · 2018-08-18T15:29:14.000+02:00
diff --git a/README.adoc b/README.adoc
@@ -3,7 +3,7 @@
 With the Arduino Ethernet Shield, this library allows an Arduino board to connect to the internet.
 
 For more information about this library please visit us at
-http://www.arduino.cc/en/Reference/Ethernet
+https://www.arduino.cc/en/Reference/Ethernet
 
 == License ==
 
