added the missing OAuth requirement

[Shiro-Nek0]

Fixed the missing OAuth authentication for the twitch api

const { TwitchOnlineTracker } = require('twitchonlinetracker')
const tracker = new TwitchOnlineTracker({
    client_id: "clientid",
    oauth: "oauth",
    track: ['stream'],
    pollInterval: 5,
    debug: true,
    start: true
})

// Listen to live event, it returns StreamData
tracker.on('live', streamData => {
    console.log(`${streamData.user_name} just went live!`)
})

// Make sure you listen for errors
tracker.on('error', error => {
    console.log(error)
})