Diagrams
It is possible to add mermaid diagrams using the {mermaid} directive, for example:
```{mermaid}
flowchart LR
A[Jupyter Notebook] --> C
B[MyST Markdown] --> C
C(mystjs) --> D{AST}
D <--> E[LaTeX]
E --> F[PDF]
D --> G[Word]
D --> H[React]
D --> I[HTML]
D <--> J[JATS]
```Will show:
