Try getting TOC to go deeper but stops pages from generating properly.

hugo.toml

@@ -11,6 +11,10 @@ paginate = 10
 # Allow direct HTML.
 markup.goldmark.renderer.unsafe = true
 
+#[markup.tableOfContents]
+#  startLevel = 2
+#  endLevel = 5
+
 ### End My Params ###