diff --git a/README.md b/README.md
index ba08865..ce0f841 100644
--- a/README.md
+++ b/README.md
@@ -16,4 +16,45 @@ venv와 패키지가 설치가 됩니다.
 uv run main.py
 ```
 
-이러면 http(s)://localhost:11080로 서버가 열리게 됩니다.
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+이러면 http(s)://localhost:11080로 서버가 열리게 됩니다.
+
+# 기여 방법
+
+`./addon/init.py`
+```py
+from example_check import Example
+
+class LoggerAddon:
+    def __init__(self):
+        self.checker = Example()
+
+    def request(self, flow: http.HTTPFlow): # 비동기가 필요할 경우 async def로 할 것
+            self.checker.test(flow)
+    def response(self, flow: http.HTTPFlow): # 비동기가 필요할 경우 async def로 할 것
+        self.checker.test(flow)
+
+```
+
+`./addon/example.py`
+```py
+import lib.target as target
+from lib.report import save_report
+
+class Example:
+    async def test(self, flow):
+        req = flow.request
+        method = req.method
+        url = req.pretty_url
+
+        # data/report.csv에 저장
+        report_data = [{
+            'target': target.load(),
+            'status': "CRITICAL",
+            'title': "PKCE Downgrade Vulnerability",
+            'description': "PKCE downgrade vulnerability detected! Both URLs returned authorization code.",
+            'uri': f"Original: {url}\nDowngraded: {downgraded_url}"
+        }]
+        save_report(report_data)
+```
+
+이러한 예제를 참고하여 작성하여주세요.
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