update library.json

Author: RobTillaart

library.json

@@ -33,6 +33,8 @@
  "paulstoffregen/OneWire": "^2.3.5"
  },
  "version": "3.11.0",
+ "license": "GNU",
  "frameworks": "arduino",
- "platforms": "*"
+ "platforms": "*",
+ "headers": "DallasTemperature.h"
 }