Mermaid:Test w template

<!-- comment? --> graph LR A[Square Rect] -- Link text --> B((Circle)) A --> C(Round Rect) B --> D{Rhombus} C --> D

<!-- comment? -->
graph LR
    A[Square Rect] -- Link text --> B((Circle))
    A --> C(Round Rect)
    B --> D{Rhombus}
    C --> D