Docs: fix zh-cn sitemap (#1631)

Signed-off-by: Carson Yang <yangchuansheng33@gmail.com>

.github/workflows/docs-deploy-vercel.yml

@@ -47,7 +47,7 @@ jobs:
 
       - name: Add cdn for images
         run: |
-          sed -i "s#\](/imgs/#\](https://cdn.jsdelivr.net/gh/yangchuansheng/fastgpt-imgs@main/imgs/#g" $(grep -rl "\](/imgs/" docSite/content/docs)
+          sed -i "s#\](/imgs/#\](https://cdn.jsdelivr.net/gh/yangchuansheng/fastgpt-imgs@main/imgs/#g" $(grep -rl "\](/imgs/" docSite/content/zh-cn/docs)
 
       # Step 3 - Install Hugo (specific version)
       - name: Install Hugo

.github/workflows/docs-preview.yml

@@ -47,7 +47,7 @@ jobs:
 
       - name: Add cdn for images
         run: |
-          sed -i "s#\](/imgs/#\](https://cdn.jsdelivr.net/gh/yangchuansheng/fastgpt-imgs@main/imgs/#g" $(grep -rl "\](/imgs/" docSite/content/docs)
+          sed -i "s#\](/imgs/#\](https://cdn.jsdelivr.net/gh/yangchuansheng/fastgpt-imgs@main/imgs/#g" $(grep -rl "\](/imgs/" docSite/content/zh-cn/docs)
 
       # Step 3 - Install Hugo (specific version)
       - name: Install Hugo

docSite/hugo.toml

-baseURL = "https://fastgpt.in"
+baseURL = "https://doc.fastgpt.in"
 languageCode = "en-GB"
 contentDir = "content"
 enableEmoji = true
@@ -9,7 +9,7 @@ defaultContentLanguage = 'zh-cn'
   [languages.zh-cn]
     title = "FastGPT"
     languageName = "简体中文"
-    #contentDir = "content/zh-cn"
+    contentDir = "content/zh-cn"
     weight = 10
   [languages.en]
     title = "FastGPT Docs"