fix frontmatter issues with autogenerated api docs

Author: Blargian

clickhouseapi.js

@@ -40,8 +40,10 @@ function groupEndpointsByPrefix(spec) {
 }
 
 function generateDocusaurusMarkdown(spec, groupedEndpoints, prefix) {
-  let markdownContent = `---\nsidebar_label: ${prefix.charAt(0).toUpperCase() + prefix.slice(1)}\n`;
-  markdownContent += `title: ${prefix.charAt(0).toUpperCase() + prefix.slice(1)}\n---\n`;
+  let markdownContent = `---\nsidebar_label: '${prefix.charAt(0).toUpperCase() + prefix.slice(1)}'\n`;
+  markdownContent += `title: '${prefix.charAt(0).toUpperCase() + prefix.slice(1)}'\n`;
+  markdownContent += `slug: /cloud/manage/api/${prefix}-api-reference\n`;
+  markdownContent += `description: 'Cloud API reference documentation for ${prefix}'\n---\n`;
 
   for (const path in groupedEndpoints) {
     for (const method in groupedEndpoints[path]) {