Markdown Syntax

sequenceDiagram
    Alice-)Bob: Hello Bob, how are you ?
    Bob-)Alice: Fine, thank you. And you?
    create participant Carl
    Alice-)Carl: Hi Carl!
    create actor D as Donald
    Carl-)D: Hi!
    destroy Carl
    Alice-xCarl: We are too many
    destroy Bob
    Bob-)Alice: I agree

Rendered SVG

CarlBobAliceCarlBobAliceDonaldHello Bob, how are you ?Fine, thank you. And you?Hi Carl!Hi!We are too manyI agreeDonald