diff --git a/_cn/2019-08-14-speech-at-msc-2019.md b/_cn/2019-08-14-speech-at-msc-2019.md
index 017ec56..f7adf27 100644
--- a/_cn/2019-08-14-speech-at-msc-2019.md
+++ b/_cn/2019-08-14-speech-at-msc-2019.md
@@ -1,14 +1,17 @@
 ---
 title: "我在微软夏令营 2019 的分享"
-tags: speech
+categories: talk
+tags: speech open-source
 redirect_from:
   - /p/24
   - /p/24-cn
   - /cn/speech-at-msc-2019/
 header:
+  overlay_image: /image/header/water-5.jpg
+  overlay_filter: linear-gradient(rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.1))
   actions:
     - label: "<i class='fas fa-file-powerpoint'></i> 获取幻灯片"
-      url: https://github.com/iBug/Archive/releases/download/Release/iBug-Handout.pdf
+      url: https://download.ibugone.com/iBug-Handout.pdf
 ---
 
 [English Version](/p/24-en) and [本文在微软学术合作官方微信公众号上的推送](https://mp.weixin.qq.com/s/obnlrJjOg7Tq-H92BkFjkA)
diff --git a/_posts/2019/2019-08-14-speech-at-msc-2019.md b/_posts/2019/2019-08-14-speech-at-msc-2019.md
index 72aa263..8ef0756 100644
--- a/_posts/2019/2019-08-14-speech-at-msc-2019.md
+++ b/_posts/2019/2019-08-14-speech-at-msc-2019.md
@@ -1,8 +1,7 @@
 ---
 title: "My speech at Microsoft Summer Camp 2019"
-date: 2019-08-14
 categories: talk
-tags: open-source
+tags: speech open-source
 comments: false
 redirect_from: /p/24-en
 header:
@@ -10,10 +9,10 @@ header:
   overlay_filter: linear-gradient(rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.1))
   actions:
     - label: "<i class='fas fa-file-powerpoint'></i> Get slideshow"
-      url: https://github.com/iBug/Archive/releases/download/Release/iBug-Handout.pdf
+      url: https://download.ibugone.com/iBug-Handout.pdf
 ---
 
-*This is a translated version from [the Chinese (original) script](/p/24-cn). The slideshow can be acquired [here](https://github.com/iBug/Archive/releases/download/Release/iBug-Handout.pdf). For comments, please head to [the Chinese version](/p/24) of this post.*
+*This is a translated version from [the Chinese (original) script](/p/24-cn). The slideshow can be acquired [here](https://download.ibugone.com/iBug-Handout.pdf). For comments, please head to [the Chinese version](/p/24) of this post.*
 
 Hello everyone, I'm iBug from the University of Science and Technology of China. Today I'll show you my experiences and tips in participating in open-source projects.