diff --git a/readme.md b/readme.md
index 6d64bac..b9760a5 100644
--- a/readme.md
+++ b/readme.md
@@ -26,6 +26,14 @@
 <br>
 <a href="https://ibb.co/LCqhmjL"><img src="https://i.ibb.co/mHYFkZL/ktx-api.png" alt="ktx-api" style="width:80%" border="0"></a>
 </br>
+<details>
+<summary>토글 접기/펼치기</summary>
+<div markdown="1">
+
+안녕
+
+</div>
+</details>
 <br>
 <br>
 <h3>2️⃣ TMAP 지오코딩 / 길찾기 API</h3>