Add Deploy Busola with Your Own Config to sidebar (kyma-project#4666)

Author: grego952

docs/user/_sidebar.ts

@@ -9,6 +9,10 @@ export default [
     text: 'Deploying and Accessing Busola in k3d',
     link: './01-41-deploy-access-k3d.md',
   },
+  {
+    text: 'Deploy Busola with Your Own Configuration',
+    link: './01-42-configure-busola.md',
+  },
   {
     text: 'Troubleshooting Guides',
     link: './troubleshooting-guides/README.md',