From 61601fde90acae912b7f26ea5fe3ae04127c2099 Mon Sep 17 00:00:00 2001
From: Jan-Erik Rediger <janerik@fnordig.de>
Date: Fri, 20 Jul 2018 12:06:54 +0200
Subject: [PATCH] Only use top- and second-level headings for the ToC

---
 src/lib.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/lib.rs b/src/lib.rs
index 00d6ad6..ce4f70d 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -66,7 +66,9 @@ impl Toc {
             }
 
             if let Event::Start(Header(lvl)) = e {
-                current_header_level = Some(lvl);
+                if lvl < 3 {
+                    current_header_level = Some(lvl);
+                }
                 continue;
             }
             if let Event::End(Header(_)) = e {