Set a placeholder 'url' field to be changed before publishing

Author: cmaglie

library.properties

@@ -5,6 +5,6 @@ maintainer=Lucio Rossi (eigen-value)
 sentence=A MessagePack RPC library for Arduino
 paragraph=allows to create a client/server architecture using MessagePack as the serialization format. It is designed to be lightweight and easy to use, making it suitable for embedded systems and IoT applications.
 category=Communication
-url=https://github.com/bcmi-labs/Arduino_RPClite
+url=https://www.arduino.cc/
 architectures=*
 depends=ArxContainer (>=0.6.0), ArxTypeTraits, DebugLog (>=0.8.1)