docs: make TOC depth 3

kenjis · kenjis · commit cf2880b4d791 · 2023-04-04T10:24:52.000+09:00
diff --git a/user_guide_src/source/general/environments.rst b/user_guide_src/source/general/environments.rst
@@ -11,7 +11,7 @@ tools loaded that you don't in production environments, etc.
 
 .. contents::
     :local:
-    :depth: 2
+    :depth: 3
 
 ************************
 The Defined Environments
