I have a chart.js running, but i really want to add axis names on teh axises, but dont know how. Could i get some help?

I have tried to figure it out by searching up, but can't find anything that explain it well.

What is am trying to get:

My chart code:

    const ctx = document.getElementById('chart').getContext('2d');
    window.myChart = new Chart(ctx,{ // having the "myChart" as a window. insted of const was sugested by someone on StackOverflow (makes the const global, i can therefor use it in another function)
        type: 'line',
        data: {
            labels: arrayTheta,
            datasets: [{
                //label: graphLabels,
                data: arrayRangeArray[0],
                backgroundColor: 'rgba(255, 99, 132, 0.2)',

                borderColor: 'rgba(255, 99, 132, 1)',
                pointRadius: 0,
                tension: 0.4  //The line "tension: 0.4" makes the graph a little bit smoother (might remove later)
            },
            {
              //label: graphLabels,
              data: arrayRangeArray[1],
              backgroundColor: 'blue, 0.2',

              borderColor: 'blue',
              pointRadius: 0,
              tension: 0.4

            },
            {
              //label: graphLabels,
              data: arrayRangeArray[2],
              backgroundColor: 'pink, 0.2',

              borderColor: 'pink',
              pointRadius: 0,
              tension: 0.4

            },
            {
              //label: graphLabels,
              data: arrayRangeArray[3],
              backgroundColor: 'orange, 0.2',

              borderColor: 'orange',
              pointRadius: 0,
              tension: 0.4

            },
            {
              //label: graphLabels,
              data: arrayRangeArray[4],
              backgroundColor: 'yellow, 0.2',

              borderColor: 'yellow',
              pointRadius: 0,
              tension: 0.4

            },
            {
              //label: graphLabels,
              data: arrayRangeArray[5],
              backgroundColor: 'black, 0.2',

              borderColor: 'black',
              pointRadius: 0,
              tension: 0.4

            }],
        },
        options: {
            scales: {
                y: {
                    beginAtZero: true
                }
                ,x: {
                  display: true,
                  type: 'linear'
                }
            }
        }
    });

It would be awesome if someone could implement it into my code and the send it here.

Thanks in advance!!