wiki_mermaid.md

+# Mermaid Diagram in Gitlab
+
+* [Mermaid Home](https://mermaidjs.github.io)
+* [Flowchart Diagram](https://mermaidjs.github.io/flowchart.html)
+* [Sequence Diagram](https://mermaidjs.github.io/sequenceDiagram.html)
+* [GANNT Diagram](https://mermaidjs.github.io/gantt.html)
+* [Examples](https://mermaidjs.github.io/demos.html)
+
+
+Example
+```mermaid
+graph TD;
+    A-->B;
+    A-->C;
+    B-->D;
+    C-->D;
+```
+