You can add your own sites to "siteDict" by following the format of previous sites.

Just add a new entry as shown below, it should end with = after which author title would be placed to search.

// list of site names and site search links
let siteDict = {
'MAM': 'https://www.myanonamouse.net/tor/browse.php?tor[text]=',
'ABB': 'https://audiobookbay.fi/?s=',
'TGx': 'https://tgx.rs/torrents.php?c13=1&search=',
'NeW': 'https://audiobooksite.new/s=',
}