diff --git a/README.md b/README.md
index 16296dd..e0fcd9b 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,7 @@ Ported to Android by SweetSea with on-screen control (with some necessary change
 * No differences in gameplay
 * Files will be saved into ``Android/data/org.love2d.android/tromi_mobile`` instead the location where the game files in
 * All UIs are touch-able
-* <detail><summary>Changes the way to input secret code to activate Pentominoes mode</summary><img src="https://gitea.com/SweetSea-ButImNotSweet/tromi_mobile/raw/branch/main/screenshot/SPOILER_secret_code.png">To insert the left arrow, tap on the left, so does to right arrow.</detail>
+* <details><summary>Changes the way to input secret code to activate Pentominoes mode</summary><img src="https://gitea.com/SweetSea-ButImNotSweet/tromi_mobile/raw/branch/main/screenshot/SPOILER_secret_code.png">To insert the left arrow, tap on the left, so does to right arrow.</details>
 * Rename ``Max Gravity Training`` to ``20G Training``
 * Add a loading screen (this need to be updated later)
 * Replaced ``binser`` serializer with ``bitser`` serializer (IDK why it is failed when saving, this change ***make configuration and profile files cannot be imported back to original Tromi***, except replay)