Connect to heroku's mysql

backend/db.js

@@ -1,8 +1,4 @@
 const Sequelize = require("sequelize");
-const sequelize = new Sequelize("sql7276322", "sql7276322", "RS53ihYlg9", {
+const sequelize = new Sequelize(process.env.JAWSDB_URL);
-  host: "sql7.freemysqlhosting.net",
-  dialect: "mysql",
-  operatorsAliases: false
-});
 
 module.exports = sequelize;