diff --git a/examples/rust/ccase/README.md b/examples/rust/ccase/README.md
index c66778e..6158610 100644
--- a/examples/rust/ccase/README.md
+++ b/examples/rust/ccase/README.md
@@ -291,5 +291,5 @@ Output:
 +-------------------------------------+
 ```
 
-# Reference
-[convert_case](https://docs.rs/convert_case/latest/convert_case/enum.Case.html#variant.Snake)
+## Acknowledgement
+Rust [convert_case](https://docs.rs/convert_case/latest/convert_case/enum.Case.html#variant.Snake) library