fix: 新增CSDN发布说明

README.md

@@ -20,7 +20,15 @@ Support features such as fast publishing, image bed management, platform expansi
   - **Notion**: Since Notion is block-based, not a whole document, it is constrained by technology and does not support updates. To update, you can only delete and then repost it.
   - **Juejin**: Due to the mandatory requirements of the Jujin platform, tags and classifications must be filled in, if you do not select publishing, a backend classification and programmer label will be added by default, otherwise you will not be able to publish.
   - **Juejin**: **Juejin need to review every time they publish an article**, so the preview may be 404 immediately after publishing the article, at which point you can modify the link '/post' to '/spost' for temporary viewing, or wait patiently for the review to pass.
-
+  - **CSDN**: CSDN requires setting tags, which is a requirement of the CSDN platform, and tags cannot be empty.
+    ![](https://img1.terwer.space/api/public/202309211113950.png)
+    If not provided, CSDN will generate an error:
+      ```json
+      {
+        "code": 400,
+        "msg": "Please set article tags"
+      }
+      ```
 > [Click here](https://blog.terwer.space/s/20230810132040-nn4q7vs) to view the latest help documentation.
 
 ## Update history

README_zh_CN.md

@@ -19,6 +19,15 @@
   - **Notion**: 由于Notion是基于块的，不是整篇文档，受限于技术，notion不支持更新。如需更新，目前只能删除后重新发布。
   - **掘金**：由于掘金平台强制要求，必须填写标签和分类，如果发布不选择默认会加上一个后端分类、程序员标签，否则将无法发布。
   - **掘金**：**掘金每次发布文章都需要审核** ，因此发布文章之后马上预览可能会404，此时可修改链接的 `/post` 为 `/spost` 临时查看，或者耐心等待审核通过。
+  - **CSDN**: CSDN必须设置标签，这是CSDN平台规定的，标签不能为空。 
+    ![](https://img1.terwer.space/api/public/202309211113950.png)
+    如果不写，CSDN会报错
+    ```json
+    {
+    "code": 400,
+    "msg": "请设置文章标签"
+    }
+    ```
 
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