docs: add Prefious and Next button

kenjis · kenjis · commit 55f3c239aff3 · 2022-08-07T18:41:34.000+09:00
diff --git a/user_guide_src/source/installation/upgrade_423.rst b/user_guide_src/source/installation/upgrade_423.rst
@@ -2,4 +2,8 @@
 Upgrading from 4.2.2 to 4.2.3
 #############################
 
+.. contents::
+    :local:
+    :depth: 2
+
 Version ``4.2.3`` is an internal change for security measures and requires no intervention in projects.
