Update README.md

add lsh Acknowledgments.

README.md

@@ -1,14 +1,25 @@
-# Usage
+# BESH
+
+ Bemly_ Shell is a simple shell, written in Rust.
+
+ inspired by lsh: https://github.com/brenns10/lsh
+
+## Usage
 
  besh -h | --help     帮助
+ 
       -v | --version  版本
+      
       -u | --use-libc 使用unsafe的libc库进行更底层的shell
+      
 
  besh <*.besh [args]>        执行besh语言脚本
+ 
  besh <command [args]>       直接执行传入命令
+ 
  besh                        默认进入besh环境
 
-# Build
+## Build
 
  git clone https://github.com/Bemly/Besh.git
 
@@ -18,6 +29,6 @@
 
  ./besh
 
-# Install
+## Install
 
- None
+ v0.0.1 Nightly Tester None