#crear archivo .env con la variable de entorno de la url de la api: REACT_APP_API_URL=http://localhost:4000/api
#install dependencies: npm i bootstrap dotenv env-cmd jquery max-validator query-string react-bootstrap react-redux redux redux-thunk sweetalert2 axios bootstrap datatables.net datatables.net-dt datatables.net-responsive datatables.net-responsive-dt dotenv env-cmd jquery max-validator node-sass query-string react-bootstrap react-router-dom redux redux-thunk sweetalert2