update readme

README.md

@@ -1,2 +1,24 @@
 # next
-PHP 8 Server for Nex Protocol
+
+PHP 8 Server for [Nex Protocol](nex://piclog.blue/nex/info/specification.txt) based on [nex-php](https://github.com/YGGverse/nex-php) library
+
+## Install
+
+* `git clone https://github.com/YGGverse/next.git`
+* `cd next`
+* `composer update`
+
+## Start
+
+``` bash
+php src/nex.php\
+    host=127.0.0.1\
+    port=1900\
+    path=/path/to/dir
+```
+
+### Arguments
+
+* `host` - optional string, `127.0.0.1` by default
+* `port` - optional int, `1900` by default
+* `path` - required string, destination files (public folder)