Update adding-assets with example

Author: jooohhn

examples/adding-assets/app/assets/python

@@ -1,13 +1,27 @@
 import React from 'react';
 import { Link } from 'react-router-dom';
+import path from 'path';
+import { exec } from 'child_process';
 import routes from '../constants/routes.json';
 import styles from './Home.css';
 
 export default function Home(): JSX.Element {
+  const [output, setOutput] = React.useState('');
+
+  function callPython() {
+    const pythonBinary = path.join(__dirname, 'assets', 'python');
+    const pythonScript = 'print("Hello World from Python")';
+    exec(`echo '${pythonScript}' | ${pythonBinary}`, (error, stdout) => {
+      setOutput(stdout);
+    });
+  }
+
   return (
     <div className={styles.container} data-tid="container">
       <h2>Home</h2>
       <Link to={routes.COUNTER}>to Counter</Link>
+      <button onClick={callPython}>Call Python in console</button>
+      <p>{`stdout: ${output}`}</p>
     </div>
   );
 }

examples/adding-assets/app/components/Home.tsx

@@ -60,7 +60,8 @@
       "app.html",
       "main.prod.js",
       "main.prod.js.map",
-      "package.json"
+      "package.json",
+      "assets/"
     ],
     "dmg": {
       "contents": [