Mermaid diagram support

[flakey5]

Enter your suggestions in details:

Adding support for mermaid diagrams (https://mermaid.js.org/) in blog posts could help with making diagrams. Was trying this out for the upcoming blog post for the r2 migration, but haven't been able to get it working

[AugustinMauroy]

+1 for that
Can we handle that by using mdx component or md plugin ?

[flakey5]

Yeah something like that, the package I was playing with was https://github.com/remcohaszing/rehype-mermaid

[AugustinMauroy]

Let's do it

[ovflowd]

@AugustinMauroy feel free to work on this hehe