Updated AuthFITBIT class

src/main/java/Main.java

@@ -0,0 +1,9 @@
+import manage.AuthFITBIT;
+
+public class Main {
+    public static void main(String[] args) throws Exception {
+        AuthFITBIT fitbit = new AuthFITBIT();
+
+        fitbit.run("https://api.fitbit.com/1/user/-/activities/heart/date/today/1d.json");
+    }
+}