Add custom values doc for ScalarDB Analytics server

Author: josh-wong

sidebars.js

@@ -788,6 +788,11 @@ const sidebars = {
                   id: 'helm-charts/configure-custom-values-scalardb-cluster',
                   label: 'Configure a custom values file for ScalarDB Cluster',
                 },
+                {
+                  type: 'doc',
+                  id: 'helm-charts/configure-custom-values-scalardb-analytics-server',
+                  label: 'Configure a Custom Values File for ScalarDB Analytics server',
+                },
                 {
                   type: 'doc',
                   id: 'helm-charts/configure-custom-values-scalardb-analytics-postgresql',