{
    "name":"HANOIEXPRESS",
    "short_name":"HANOIEXPRESS",
    "start_url":"index.html?v=1",
    "display":"standalone",
    "background_color":"#fffff",
    "theme_color":"black",
    "scope": ".",
    "description":"HANOIEXPRESS",
    "icons":[
    {
    "src":"images/icon-192x192.png?v=21",                     
    "sizes":"192x192",
    "type":"image/png"
    },
    {
    "src":"images/icon-512x512.png?v=21",
    "sizes":"512x512",
    "type":"image/png"
    }
  ]
}