diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 0d5cf0f..fdfe6d2 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -108,7 +108,7 @@ jobs:
       - name: Submit to IndexNow
         uses: bojieyang/indexnow-action@v3
         with:
-          sitemap-location: '${{ env.SITE_URL }}sitemap-index.xml'
+          sitemap-location: '${{ vars.SITE_URL }}sitemap-index.xml'
           key: ${{ vars.INDEXNOW_KEY }}
           lastmod-required: false
           endpoint: api.indexnow.org
@@ -179,7 +179,7 @@ jobs:
       - name: Submit to IndexNow
         uses: bojieyang/indexnow-action@v3
         with:
-          sitemap-location: '${{ env.SITE_URL }}sitemap.xml'
+          sitemap-location: '${{ vars.SITE_URL }}sitemap.xml'
           key: ${{ vars.INDEXNOW_KEY }}
           lastmod-required: false
           endpoint: api.indexnow.org
diff --git a/docs/GithubActions-en.md b/docs/GithubActions-en.md
index 67b9348..0d92f58 100644
--- a/docs/GithubActions-en.md
+++ b/docs/GithubActions-en.md
@@ -88,10 +88,29 @@ Simply copy all contents of your `.env` file into the variable value.
 
 Also in <b>`Settings > Secrets and variables > Actions`</b>, add four `Repository variables`:
 
-| Variable Name | Value Example                                                               |
-| ------------- | --------------------------------------------------------------------------- |
-| `DEPLOY_HOST` | Server IP address, for example `192.168.1.1`                                |
-| `DEPLOY_PATH` | Deployment path on the server, for example `/www/wwwroot/blog.cloverta.top` |
-| `DEPLOY_PORT` | SSH port of the server, usually `22`                                        |
-| `DEPLOY_USER` | Login username, for example `root`                                          |
+| **Variable Name** | **Value**                                                    |
+| ----------------- | ------------------------------------------------------------ |
+| `DEPLOY_HOST`     | The IP address of your server, e.g. `192.168.1.1`            |
+| `DEPLOY_PATH`     | The deployment path on the server, e.g. `/www/wwwroot/blog.cloverta.top` |
+| `DEPLOY_PORT`     | The SSH port of your server, usually `22`                    |
+| `DEPLOY_USER`     | The login user, e.g. `root`                                  |
+| `INDEXNOW_KEY`    | A string used as the key submitted to IndexNow. You can directly use `888c64d8d7d9a2b605bcd5277021a414` |
+| `SITE_URL`        | Your domain name, e.g. `https://blog.cloverta.top/`. Make sure to include the trailing slash |
 
+#### About `INDEXNOW_KEY`
+
+The repository's `Actions` workflow will automatically submit updates to [IndexNow](https://www.indexnow.org/). You need to generate a random key in the `public` directory so that IndexNow can verify that you own the website.
+
+If you do not want to configure your own key, you can simply use the `Key` included in this repository:
+
+```txt
+888c64d8d7d9a2b605bcd5277021a414
+```
+
+If you want to generate your own key, you can use:
+
+```bash
+openssl rand -hex 16
+```
+
+This will generate a random string. For example, if the output is `abcdefg123`, you need to save it as `public/abcdefg123.txt`, with the contents of the file also set to `abcdefg123`.
diff --git a/docs/GithubActions.md b/docs/GithubActions.md
index 35690a7..dac7583 100644
--- a/docs/GithubActions.md
+++ b/docs/GithubActions.md
@@ -88,10 +88,29 @@ PUBLIC_REMARK42_SITE_ID=
 
 同样，在<b>`Settings > Secrets and variables > Actions`</b>中，添加四个`Repository variables`，分别为：
 
-| 密钥名        | 内容                                                     |
-| ------------- | -------------------------------------------------------- |
-| `DEPLOY_HOST` | 服务器IP地址，如`192.168.1.1`                            |
-| `DEPLOY_PATH` | 在服务器上的部署路径，如`/www/wwwroot/blog.cloverta.top` |
-| `DEPLOY_PORT` | 服务器SSH端口，一般是`22`                                |
-| `DEPLOY_USER` | 登录用户，例如`root`                                     |
+| 密钥名         | 内容                                                         |
+| -------------- | ------------------------------------------------------------ |
+| `DEPLOY_HOST`  | 服务器IP地址，如`192.168.1.1`                                |
+| `DEPLOY_PATH`  | 在服务器上的部署路径，如`/www/wwwroot/blog.cloverta.top`     |
+| `DEPLOY_PORT`  | 服务器SSH端口，一般是`22`                                    |
+| `DEPLOY_USER`  | 登录用户，例如`root`                                         |
+| `INDEXNOW_KEY` | 提交至IndexNow的一串ID字符，可以直接填``888c64d8d7d9a2b605bcd5277021a414`` |
+| `SITE_URL`     | 你的域名，例如`https://blog.cloverta.top/`，注意结尾要带反斜杠 |
 
+#### 关于`INDEXNOW_KEY`
+
+仓库的`Actions`会自动向 [Index Now](https://www.indexnow.org/) 推送更新，你需要在`public`目录下生成一个随机的key向Index Now证明这个网站是你的。
+
+如果懒得配可以直接用这个仓库中的`Key`
+
+```txt
+888c64d8d7d9a2b605bcd5277021a414
+```
+
+如果你想生成一个自己的，你可以使用
+
+```bash
+openssl rand -hex 16
+```
+
+生成一串随机字符，假设输出内容为`abcdefg123`，你需要将其保存到`public/abcdefg123.txt`，并且内容也为`abcdefg123`。