Displaying Mermaid diagrams in Sharepoint Online Markdown web parts

tmayrand Any luck?

From what I'm seeing https://github.blog/2022-02-14-include-diagrams-markdown-files-mermaid/ there is a syntax to announce mermaid. 
I tried this

```mermaid
  graph TD;
      A-->B;
      A-->C;
      B-->D;
      C-->D;
```

Or also this

:::mermaid
  graph TD;
      A-->B;
      A-->C;
      B-->D;
      C-->D;
:::

within a Markdown WebPart of SharePoint. 

However neither worked.
I'm unsure if it's because my syntax is wrong, or if we just need for Microsoft to roll out an update where mermaid would be recognized. 

Alternatively, what's a good way to do diagrams within SharePoint? 
My previous company used Atlassian Confluence and I find the library of webpart in Sharepoint to be limited.