📝 Add missing semicolons

[ci skip]

docs/tutorial/desktop-environment-integration.md

@@ -23,8 +23,8 @@ let myNotification = new Notification('Title', {
 });
 
 myNotification.onclick = function () {
-  console.log('Notification clicked')
-}
+  console.log('Notification clicked');
+};
 ```
 
 While code and user experience across operating systems are similar, there

docs/tutorial/quick-start.md

@@ -80,7 +80,7 @@ The `main.js` should create windows and handle system events, a typical
 example being:
 
 ```javascript
-const electron = require('electron')
+const electron = require('electron');
 // Module to control application life.
 const app = electron.app;
 // Module to create native browser window.

docs/tutorial/using-widevine-cdm-plugin.md

@@ -66,7 +66,7 @@ app.on('ready', () => {
       // The `plugins` have to be enabled.
       plugins: true
     }
-  })
+  });
 });
 ```