Add the arduino package for better support for Arduino source files

configuration.org

@@ -3378,6 +3378,13 @@ directory.  It is available from [[http://plantuml.com/download][here]].
   (gitlab-ci-mode-flycheck-enable))
 #+END_SRC
 
+** Arduino
+
+#+BEGIN_SRC emacs-lisp
+(use-package arduino-mode
+  :mode "\\.ino\\'")
+#+END_SRC
+
 * Games
 
 ** Gnu Go