added documentation

LenaPi/EnergySaver.h

@@ -4,6 +4,12 @@
 #include <QObject>
 #include <QTimer>
 
+/**
+ * @brief Class handling energy saving options.
+ *
+ * Shut down RaspberryPi if no mouse input is detected and music player
+ * has not been active or a certain time interval.
+ */
 class EnergySaver : public QObject
 {
     Q_OBJECT
@@ -12,7 +18,8 @@ protected:
     EnergySaver(QObject *parent = 0);
 
 public:
-    static void init(int intervall);
+
+    static void init(int interval);
     static EnergySaver *instance();
 
 public slots: