📝 Update changelog

Author: noneflow[bot]

website/src/changelog/changelog.md

@@ -13,6 +13,7 @@ toc_max_heading_level: 2
 
 ### 🍻 插件发布
 
+- Plugin: nonebot_plugin_markdown2img [@noneflow](https://github.com/noneflow) ([#3730](https://github.com/nonebot/nonebot2/pull/3730))
 - Plugin: B站解析助手 [@noneflow](https://github.com/noneflow) ([#3728](https://github.com/nonebot/nonebot2/pull/3728))
 
 ## v2.4.4