diff --git a/src/main.rs b/src/main.rs
index 9478aff..e6d4842 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -108,7 +108,7 @@ fn crawl(source: &str, target: &str, output: &Output) -> Result<(), Box<dyn Erro
                 continue;
             }
 
-            let mut buffer = String::new();
+            let mut buffer = String::from("##"); // correct heading levels
             File::open(&format!("{path}{name}"))?.read_to_string(&mut buffer)?;
             data.push(buffer);