add home route to redirect to "/employee" route as default

project/models/db.js

@@ -1,8 +1,9 @@
 const mongoose = require('mongoose');
+const employee = require('./employee.model');
 
 mongoose.connect('mongodb://localhost:27017/EmployeeDB', { useNewUrlParser: true }, (err) => {
     if (!err) { console.log('MongoDB Connection Succeeded.') }
     else { console.log('Error in DB connection : ' + err) }
 });
 
-require('./employee.model');
+// require('./employee.model');

project/models/employee.model.js

@@ -22,4 +22,4 @@ employeeSchema.path('email').validate((val) => {
     return emailRegex.test(val);
 }, 'Invalid e-mail.');
 
-mongoose.model('Employee', employeeSchema);
+module.exports = mongoose.model('Employee', employeeSchema);