Fix URL format and enable trailing slash

Updated the URL format and added trailing slash.

Author: rmcdaniel

docusaurus.config.js

@@ -8,8 +8,9 @@ const darkCodeTheme = require('prism-react-renderer/themes/dracula');
 const config = {
   title: 'Durable Workflow',
   tagline: 'Laravel-native durable workflows.',
-  url: 'https://durable-workflow.com/',
+  url: 'https://durable-workflow.com',
   baseUrl: '/',
+  trailingSlash: true,
   onBrokenLinks: 'throw',
   onBrokenMarkdownLinks: 'warn',
   favicon: 'img/favicon.ico',