Merge pull request #150 from marvinroger/patch-1

Add library category

library.properties

@@ -4,5 +4,6 @@ author=Benoit Blanchon <blog.benoitblanchon.fr>
 maintainer=Benoit Blanchon <blog.benoitblanchon.fr>
 sentence=An efficient and elegant JSON library for Arduino.
 paragraph=Like this project? Please star it on GitHub!
+category=Data Processing
 url=https://github.com/bblanchon/ArduinoJson
 architectures=*