diff --git a/index.md b/index.md
index d73df07..2b59a5e 100644
--- a/index.md
+++ b/index.md
@@ -24,6 +24,7 @@
    20. [jenkins安裝指令](https://jian-hong-wu.github.io/blog/jenkins/)
    21. [VScode安裝指令](https://jian-hong-wu.github.io/blog/VScode/)
    22. [Unetbootin](https://jian-hong-wu.github.io/blog/Unetbootin/)
+   23. [ngrok](https://zoejoyuliao.medium.com/%E9%80%8F%E9%81%8E-github-webhook-%E8%A7%B8%E7%99%BC%E6%9C%AC%E5%9C%B0-jenkins-pipeline-%E8%AE%93%E4%BD%A0-push-code-%E5%88%B0-github-%E5%B0%B1%E6%9C%83%E8%87%AA%E5%8B%95%E8%B7%91-ci-cd-7c4bd7a22446)