diff --git a/readme.md b/readme.md
index 6233652..b2dcd7b 100644
--- a/readme.md
+++ b/readme.md
@@ -7,3 +7,37 @@ https://github.com/alliedmodders/hl2sdk/
 https://github.com/Source2ZE/CS2Fixes/  
 https://github.com/bruhmoment21/cs2-sdk/  
 https://github.com/neverlosecc/source2sdk  
+### Usage 
+1. use vs2019 compile csgo2.dll and loader.exe 
+2. create a config.json in loader.exe directory: 
+```
+{
+  "servers": [
+    {
+        "dll": "your path in csgo2.dll in vs2019 complie",
+        "path": "path for cs2.exe",
+        "command": "cs2.exe server run command"
+    }
+  ]
+}
+```
+example:  
+```
+{
+  "servers": [
+    {
+      "dll": "C:\\Users\\Administrator\\Desktop\\loader\\csgo2.dll",
+      "path": "C:\\Program Files (x86)\\steam\\steamapps\\common\\Counter-Strike Global Offensive\\game\\bin\\win64\\cs2.exe",
+      "command": "-ip 0.0.0.0 -dedicated -game csgo -console -usercon +game_type 0 +game_mode 0 +mp_maxrounds 30 -maxplayers_override 64 +exec server.cfg +exec gamemode_retakecasual.cfg +map de_dust2 +mp_endmatch_votenextleveltime 20 +mp_endmatch_votenextmap 1 +hostname xxxxxx"
+    }
+  ]
+}
+
+```
+3. run loader.exe as administrator, cs2 server will start
+4. create `huoji_scripts` in cs2.exe dirctory
+5. create plugin dirctory name ,like `funny_trash` is my plugin name
+6. put your own plugin script in you plugin dircory name 
+### Test Plugin  
+api,plugin example: 
+https://github.com/huoji120/cs2_funny_trash_plugin