Update README.md

Author: jcs090218

README.md

@@ -4,7 +4,7 @@
 
 > Base from https://github.com/jrasky/flx, for Emacs
 
-# flx
+# flxy-rs
 > Fast, character-based search library in Rust
 
 [![CI](https://github.com/jcs090218/flxy/actions/workflows/ci.yml/badge.svg)](https://github.com/jcs090218/flxy/actions/workflows/ci.yml)