Backlinks in mermaid flowchart/diagram

[andypassion]

Can’t find out how to embed backlink (internal link) in mermaid diagram.
Example:

graph TD
A-->B [[internal link?]]

Where i can add internal link?
Thank you.

[tallguyjenks]

```mermaid
	graph TD;
            A-->B[my link]
            class B internal-link;
```

More about mermaid:

Comprehensive Overview | Using Mermaid Flowcharts In Obsidian 🧜🏻‍♀️️

[andypassion]

Oh thank you very much!