"mermaid-js" graphs for Markdown

 Include diagrams in your Markdown files with Mermaid | The GitHub Blog

mermaid - Markdownish syntax for generating flowcharts, sequence diagrams, class diagrams, gantt charts and git graphs.

JavaScript Weekly Issue 577: February 18, 2022

dagrejs/dagre-d3: [DEPRECATED] - A D3-based renderer for Dagre

dagrejs/dagre: [DEPRECATED] - Directed graph layout for JavaScript

Other Examples 

Basic flowchart