[CALCITE-3033] Add navigation item for avatica-go HOWTO documentation
diff --git a/site/_data/docs.yml b/site/_data/docs.yml
index de60b87..5081d6b 100644
--- a/site/_data/docs.yml
+++ b/site/_data/docs.yml
@@ -35,6 +35,7 @@
 - title: Avatica Go Client Reference
   docs:
   - go_client_reference
+  - go_howto
 
 - title: Avatica Meta
   docs: