set env variables config in webpack file

src/axios-movies.js

@@ -1,8 +1,8 @@
-import axios from 'axios'; 
+import axios from 'axios';
 
 /** base url to make requests to the the movie database */
 const instance = axios.create({
-  baseURL: "https://api.themoviedb.org/3"
+  baseURL: 'https://api.themoviedb.org/3',
 });
 
-export default instance; 
+export default instance;