fix some typo

bin/bffhd/main.rs

@@ -133,7 +133,7 @@ fn main() -> miette::Result<()> {
         let encoded = serde_dhall::serialize(&config).to_string().unwrap();
 
         // Direct writing to fd 1 is faster but also prevents any print-formatting that could
-        // invalidate the generated TOML
+        // invalidate the generated DHALL
         let stdout = io::stdout();
         let mut handle = stdout.lock();
         handle.write_all(encoded.as_bytes()).unwrap();