diff --git a/config.toml b/config.toml
index 92407dd..f9efd8b 100644
--- a/config.toml
+++ b/config.toml
@@ -16,7 +16,7 @@ defaultContentLanguageInSubdir= true
   disableNextPrev = false
   disableLandingPageButton = true
   disableMermaid = false
-  customMermaidURL = "https://unpkg.com/mermaid@8.8.0/dist/mermaid.min.js"
+  #customMermaidURL = "https://unpkg.com/mermaid@8.8.0/dist/mermaid.min.js"
   titleSeparator = "::"
   themeVariant = "blue"
   custom_css = ["css/theme-mine.css"]
diff --git a/content/self-host/install/_index.en.md b/content/self-host/install/_index.en.md
index f570246..6ef022d 100644
--- a/content/self-host/install/_index.en.md
+++ b/content/self-host/install/_index.en.md
@@ -10,7 +10,7 @@ weight: 10
 
 [Download](https://github.com/rustdesk/rustdesk-server/) or use docker rustdesk/rustdesk-server, **Note:** You need [buy license](https://rustdesk.com/server/) When using this software
 
-Three platform versions provided:
+Platform versions provided:
   - Linux
   - Windows
 
@@ -20,11 +20,6 @@ There are two executables:
   - hbbs - RustDesk ID/Rendezvous server
   - hbbr - RustDesk relay server
 
-Do below after download
-```
-chmod a+x hbbs hbbr
-```
-
 They are built on Centos7, tested on Centos7/8, Ubuntu 18/20.
 
 #### Server Requirements
@@ -84,7 +79,8 @@ hbbs.yourhost.com:21116
 
 ![](/docs/en/self-host/install/images/server-set-window.png)
 
-### Key
+## Key
+-----------
 Different from the old version, the Key in this version is mandatory. When hbbs runs for the first time, it will automatically generate a pair of encrypted private key and public key (respectively located in the `id_ed25519` and `id_ed25519.pub` files in the running directory), its main purpose is for communication encryption, if you did not fill in the Key in the previous step (the content in the public key file `id_ed25519.pub`),
 
 ````
diff --git a/content/self-host/install/_index.zh-cn.md b/content/self-host/install/_index.zh-cn.md
index d1a620f..a6a58bf 100644
--- a/content/self-host/install/_index.zh-cn.md
+++ b/content/self-host/install/_index.zh-cn.md
@@ -10,7 +10,7 @@ weight: 10
 
 [下载](https://gitee.com/rustdesk/rustdesk-server/)或者使用docker rustdesk/rustdesk-server，**注意**： 你需要[购买许可](https://rustdesk.com/server/)才能正常运行本程序
 
-提供三个版本：
+提供版本：
   - Linux
   - Windows
 
@@ -20,11 +20,6 @@ weight: 10
   - hbbs - RustDesk ID注册服务器
   - hbbr - RustDesk 中继服务器
 
-下载后务必
-```
-chmod a+x hbbs hbbr
-```
-
 Linux版本在Centos7构建，在 Centos7/8，Ubuntu 18/20上测试过，Debian系列的发行版本应该都没有问题。如果有其他发行版本需求，请联系我。
 
 #### 服务器要求
@@ -81,7 +76,8 @@ hbbs.yourhost.com:21116
 ```
 ![](/docs/en/self-host/install/images/server-set-window-zh.png)
 
-### Key
+## Key
+-----------
 同上个版本不同，本版本中的Key是强制的，hbbs在第一次运行时，会自动产生一对加密私钥和公钥（分别位于运行目录下的`id_ed25519`和`id_ed25519.pub`文件中），其主要用途是为了通讯加密，如果您在上一步骤中没有填写Key(公钥文件`id_ed25519.pub`中的内容)，
 
 ```
diff --git a/content/self-host/install/_index.zh-tw.md b/content/self-host/install/_index.zh-tw.md
index 3caf158..f2cb42b 100644
--- a/content/self-host/install/_index.zh-tw.md
+++ b/content/self-host/install/_index.zh-tw.md
@@ -10,7 +10,7 @@ weight: 10
 
 [下載](https://gitee.com/rustdesk/rustdesk-server/)或者使用docker rustdesk/rustdesk-server，**注意**： 你需要[購買許可](https://rustdesk.com/server/)才能正常運行本程序
 
-提供三個版本：
+提供版本：
   - Linux
   - Windows
 
@@ -20,11 +20,6 @@ weight: 10
   - hbbs - RustDesk ID註冊服務器
   - hbbr - RustDesk 中繼服務器
 
-下載後務必
-```
-chmod a+x hbbs hbbr
-```
-
 Linux版本在Centos7構建，在 Centos7/8，Ubuntu 18/20上測試過，Debian系列的發行版本應該都沒有問題。如果有其他發行版本需求，請聯繫我。
 
 #### 服務器要求
@@ -81,7 +76,8 @@ hbbs.yourhost.com:21116
 ```
 ![](/docs/en/self-host/install/images/server-set-window-zh.png)
 
-### Key
+## Key
+-----------
 同上個版本不同，本版本中的Key是強制的，hbbs在第一次運行時，會自動產生一對加密私鑰和公鑰（分別位於運行目錄下的`id_ed25519`和`id_ed25519.pub`文件中），其主要用途是為了通訊加密，如果您在上一步驟中沒有填寫Key(公鑰文件`id_ed25519.pub`中的內容)，
 
 ```
diff --git a/content/self-host/install/images/server-set-window-zh.png b/content/self-host/install/images/server-set-window-zh.png
index 6874669..73267fc 100644
Binary files a/content/self-host/install/images/server-set-window-zh.png and b/content/self-host/install/images/server-set-window-zh.png differ