Add logout function

routes/auth.js

@@ -8,6 +8,11 @@ router.get('/login', (req, res, next) => {
     res.render('accounts/login', { title : "Login" });
 });
 
+router.get('/logout', (req, res, next) => {
+    req.logout();
+    res.redirect("/");
+});
+
 router.post('/login', 
         passport.authenticate('local', {
             failureRedirect: '/fail',