chore: tweak config

Author: Long Ho

website/.gitignore

@@ -18,3 +18,5 @@
 npm-debug.log*
 yarn-debug.log*
 yarn-error.log*
+
+.now

website/docusaurus.config.js

@@ -2,7 +2,7 @@ module.exports = {
   title: 'Format.JS',
   tagline: 'Internationalize your web apps on the client & server.',
   url: 'https://formatjs.github.io/',
-  baseUrl: '/formatjs/',
+  baseUrl: '/',
   favicon: 'img/favicon.ico',
   organizationName: 'formatjs', // Usually your GitHub org/user name.
   projectName: 'formatjs', // Usually your repo name.