update README

README.md

@@ -1,10 +1,28 @@
+# php-fuse
+
+![Minimum PHP version: 7.4.0](https://img.shields.io/badge/php-7.4.0%2B-blue.svg)
+
 PHP FFI bindings for libfuse
 
+## Installation
+```bash
+composer require sj-i/php-fuse
 ```
+
+## Requirements
+- PHP-7.4 64bit Linux x86_64 (NTS / ZTS)
+- FFI extension
+- libfuse
+
+# LICENSE
+- MIT
+
+## Example
+```bash
 php example/dummy_file.php -s -f /tmp/example/
 ```
 
-```
+```bash
 $ ls -la /tmp/example/
 total 180
 drwxr-xr-x  2 sji  sji       0  1月  1  1970 .