Mermaid is a Javascript based diagramming tool. It is nice that we can use Mermaid on Github page. I tried creating and styling flowcharts with Mermaid. It could be a handy tool.

graph TD A([Trouble]) -->B{Investigation} -->C(Possible Reason 1) & D(Possible Reason 2) C --> E(Solution 1) & F(Solution 2) D --> G(Solution 1) & H(Solution 2) click E "https://www.google.com" _blank click G "https://www.google.com" _blank classDef simpleChart fill:#fff, stroke:#333, stroke-width:2px; class A,B,C,D,E,F,G,H simpleChart;


graph LR A([Trouble]) --> F{Investigation} --> B(Possible Reason 1) & C(Possible Reason 2) B --> D("Solution #128279;") C --> E(Solution) click D "https://www.google.com" _blank click E "https://www.google.com" _blank classDef simpleChart fill:#0085bb, stroke:#fff, color:#fff; class A,B,C,D,E,F simpleChart;