Edit config.json to add more audio files under "audios"
"audios": {
"name of index": {
"title": "Title shown above the playable audio file",
"url": "path to the audio file"
},
}Addidtional settings:
"pageTitle": "Text shown at top of the tab. (Default: MP3 Viewer)",
"title": "Text shown at the top of the website. (Default: '')",
"description": "Text shown underneath the title text. (Default: '')",