chore: use /docs/ as prefix

Signed-off-by: Leonardo Cecchi <[email protected]>

Author: leonardoce

docusaurus.config.ts

@@ -18,7 +18,7 @@ const config: Config = {
   url: 'https://cloudnative-pg.github.io',
   // Set the /<baseUrl>/ pathname under which your site is served
   // For GitHub pages deployment, it is often '/<projectName>/'
-  baseUrl: '/',
+  baseUrl: '/docs/',
 
   // GitHub pages deployment config.
   organizationName: 'cloudnative-pg',