docs: fix baseUrl

Author: JasonShin

book/docusaurus.config.ts

@@ -10,7 +10,7 @@ const config: Config = {
   favicon: 'img/favicon.ico',
 
   // Set the production url of your site here
-  url: 'https://jasonshin.github.io/sqlx-ts/',
+  url: 'https://jasonshin.github.io/',
   // Set the /<baseUrl>/ pathname under which your site is served
   // For GitHub pages deployment, it is often '/<projectName>/'
   baseUrl: '/sqlx-ts/',