{
"menu": [
  {
    "label": "Packages",
    "submenu": [
      {
        "label": "Markdown to PDF",
        "submenu": [
          {
            "label": "Toggle Preview",
            "command": "markdown-pdf:convert"
          }
        ]
      }
    ]
  }
]
}

{
"menu": [
  {
    "label": "Packages",
    "submenu": [
      {
        "label": "Markdown to PDF",
        "submenu": [
          {
            "label": "Convert",
            "command": "markdown-pdf:convert"
          }
        ]
      }
    ]
  }
]
}

Add convert command to menu
Add convert command to menu
