Add badges

Author: lusingander

README.md

@@ -1,6 +1,7 @@
 # Serie
 
 [![Crate Status](https://img.shields.io/crates/v/serie.svg)](https://crates.io/crates/serie)
+[![Built With Ratatui](https://img.shields.io/badge/Built_With-Ratatui-000?logo=ratatui&logoColor=fff&labelColor=000&color=fff)](https://ratatui.rs)
 
 A rich git commit graph in your terminal, like magic 📚