在VSCode安装Markdown All in One或Markdown Preview Enhanced即可
插件Markdown All in One
GitHub:https://github.com/yzhang-gh/vscode-markdown
插件Markdown Preview Enhanced
GitHub:https://github.com/shd101wyy/markdown-preview-enhanced
安装教程:https://shd101wyy.github.io/markdown-preview-enhanced/#/zh-cn/vscode-installation
个人感觉Markdown Preview Enhanced比较好用: