demo plugin for MarkdownIt
npm install @mdit/plugin-demo

demo plugin for MarkdownIt.
``bashpnpmpnpm add -D @mdit/plugin-demonpmnpm i -D @mdit/plugin-demoyarnyarn add -D @mdit/plugin-demo``
bashpnpmpnpm add -D @mdit/plugin-demonpmnpm i -D @mdit/plugin-demoyarnyarn add -D @mdit/plugin-demo