Testing Mermaid Diagrams

This is a test post to verify Mermaid diagram support.

Flowchart (Graph TD)

graph TD
    A[Start] --> B{Is it working?}
    B -->|Yes| C[Great!]
    B -->|No| D[Debug]
    D --> B
    C --> E[End]
graph TD
    A[Start] --> B{Is it working?}
    B -->|Yes| C[Great!]
    B -->|No| D[Debug]
    D --> B
    C --> E[End]

Sequence Diagram

sequenceDiagram
    participant User
    participant Browser
    participant Server
    
    User->>Browser: Request page
    Browser->>Server: GET /page
    Server-->>Browser: HTML response
    Browser-->>User: Display page
sequenceDiagram
    participant User
    participant Browser
    participant Server
    
    User->>Browser: Request page
    Browser->>Server: GET /page
    Server-->>Browser: HTML response
    Browser-->>User: Display page

Class Diagram

classDiagram
    class Animal {
        +String name
        +makeSound()
    }
    class Dog {
        +bark()
    }
    class Cat {
        +meow()
    }
    Animal <|-- Dog
    Animal <|-- Cat
classDiagram
    class Animal {
        +String name
        +makeSound()
    }
    class Dog {
        +bark()
    }
    class Cat {
        +meow()
    }
    Animal <|-- Dog
    Animal <|-- Cat

Entity Relationship Diagram

erDiagram
    USER ||--o{ POST : creates
    USER ||--o{ COMMENT : writes
    POST ||--o{ COMMENT : has
erDiagram
    USER ||--o{ POST : creates
    USER ||--o{ COMMENT : writes
    POST ||--o{ COMMENT : has

Gantt Chart

gantt
    title Project Timeline
    dateFormat  YYYY-MM-DD
    section Planning
    Research       :done,    des1, 2026-01-01, 2026-01-15
    Design         :active,  des2, 2026-01-16, 2026-02-01
    section Development
    Coding         :         des3, 2026-02-02, 2026-03-01
    Testing        :         des4, 2026-03-02, 2026-03-15
gantt
    title Project Timeline
    dateFormat  YYYY-MM-DD
    section Planning
    Research       :done,    des1, 2026-01-01, 2026-01-15
    Design         :active,  des2, 2026-01-16, 2026-02-01
    section Development
    Coding         :         des3, 2026-02-02, 2026-03-01
    Testing        :         des4, 2026-03-02, 2026-03-15

Pie Chart

pie
    title Browser Market Share
    "Chrome" : 65
    "Safari" : 18
    "Firefox" : 10
    "Edge" : 7
pie
    title Browser Market Share
    "Chrome" : 65
    "Safari" : 18
    "Firefox" : 10
    "Edge" : 7

State Diagram

stateDiagram-v2
    [*] --> Idle
    Idle --> Processing : Start
    Processing --> [*] : Complete
    Processing --> Error : Failed
    Error --> Processing : Retry
stateDiagram-v2
    [*] --> Idle
    Idle --> Processing : Start
    Processing --> [*] : Complete
    Processing --> Error : Failed
    Error --> Processing : Retry

If you can see all the diagrams rendered above, Mermaid support is working correctly!