docs: add gif

Author: tkmn0

Docs/caress_example.gif

@@ -1,7 +1,12 @@
 # Caress.Unity - encoder / decoder / noise reducer
 
 ## What is Caress.Unity?    
-Caress.Unity is a wrapper library for libopus and librnnoise. The libopus can handle encoding / decoding audio frames. The librnnnoise can handle noise reducing. Caress.Unity can encoding, decoding, and noise reducing with Unity(C#).
+Caress.Unity is a wrapper library for libopus and librnnoise. The libopus can handle encoding / decoding audio frames. The librnnnoise can handle noise reducing. Caress.Unity can encoding, decoding, and noise reducing with Unity(C#). Actually, Caress.unity is a wrapper for [caress](https://github.com/tkmn0/caress), so caress is a wrapper library for c libraries and Caress.Unity is a wrapper library for golang.    
+
+<div align="center">
+<img src="./Docs/caress_example.gif" alt="caress_example_gif">
+</div>
+
 
 ## Features
 - Audio encoding with opus codec.