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Showing content from https://github.com/urfave/cli-docs below:

urfave/cli-docs: Extended documentation library for use with urfave/cli/v3

urfave/cli-docs/v3 is an extended documentation library for use with urfave/cli/v3.

1. Add the dependency to your project

 go get github.com/urfave/cli-docs/v3@latest

1. Add it as import

 import (
+  docs "github.com/urfave/cli-docs/v3"
 )

1. Now use it e.g. to generate markdown document from a command

package main

import (
    "context"
    "fmt"
    "os"

    docs "github.com/urfave/cli-docs/v3"
    cli "github.com/urfave/cli/v3"
)

func main() {
    app := &cli.Command{
        Name:  "greet",
        Usage: "say a greeting",
        Action: func(ctx context.Context, c *cli.Command) error {
            fmt.Println("Greetings")
            return nil
        },
    }

    md, err := docs.ToMarkdown(app)
    if err != nil {
        panic(err)
    }

    fi, err := os.Create("cli-docs.md")
    if err != nil {
        panic(err)
    }
    defer fi.Close()
    if _, err := fi.WriteString("# CLI\n\n" + md); err != nil {
        panic(err)
    }
}

This will create a file cli-docs.md with content:

# CLI

# NAME

greet - say a greeting

# SYNOPSIS

greet

**Usage**:

```
greet [GLOBAL OPTIONS] [command [COMMAND OPTIONS]] [ARGUMENTS...]
```

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