Upgrading Mermaid

Hello,

Mermaid adds a mindmap feature in the version 9.2.0 and this is the 9.1.7 versions in Joplin.

Since, making mindmap is a feature asked for joplin, it would be interesting to upgrade mermaid.

I have read that it was easy to do but I am not a dev ...

Could you do it or tell me how to do it ?

Thank you in advance !