add back link to overview

Author: Blargian

docs/getting-started/quick-start/index.mdx

@@ -88,7 +88,7 @@ import Link from '@docusaurus/Link';
             margin: '0'
         }
     }}>
-        {/*<Link to="/cloud/overview#oss-vs-clickhouse-cloud" style={{textDecoration: 'none', width: '100%'}}>
+        <Link to="/cloud/overview" style={{textDecoration: 'none', width: '100%'}}>
           <CardPromotion
               icon="question"
               label="Not sure which to choose? Click here to learn about the differences between Cloud and OSS ClickHouse"
@@ -103,6 +103,6 @@ import Link from '@docusaurus/Link';
                   cursor: 'pointer'
               }}
           />
-        </Link>*/}
+        </Link>
     </div>
 </div>