github-markdown-support-for-mermaid-diagrams.md

mermaid-diagrams-github-markdown-example.md

flow diagram

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flowchart TD
    A[Start] --> B{Is it?}
    B -->|Yes| C[OK]
    C --> D[Rethink]
    D --> B
    B ---->|No| E[End]

git branching graph

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    gitGraph
       commit
       commit
       branch develop
       commit
       commit
       commit
       checkout main
       commit
       commit

State transition diagram

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stateDiagram-v2
    [*] --> Still
    Still --> [*]

    Still --> Moving
    Moving --> Still
    Moving --> Crash
    Crash --> [*]

Entity relationship diagram

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erDiagram
    CAR ||--o{ NAMED-DRIVER : allows
    CAR {
        string allowedDriver FK "The license of the allowed driver"
        string registrationNumber
        string make
        string model
    }
    PERSON ||--o{ NAMED-DRIVER : is
    PERSON {
        string driversLicense PK "The license #"
        string firstName
        string lastName
        int age
    }