Simple mermaid diagram plugin

[bjgrosse]

Made a simple mermaid diagram plugin. Sharing here in case it helps anyone. Repo here. Demo here

[yswang0927]

Thank you!

[yswang0927]

@bjgrosse It's not working in Crepe API mode:

const crepe = new Crepe({
        root: editorDomRef.current,
        ...
});

crepe.editor.use(mermaidConfig);
crepe.editor.use(mermaid);
crepe.create();