Help with Coding Glitch for Mapbox

Hi all, I am working in glitch to develop a scrollytellying map in Mapbox. I have a coding error, but I cannot seem to find what specifically what is wrong. I know that the issue line 79, but I am not sure what the specific fix is. Any and all help is appreciated. Here is the link to the code: Glitch :・゚✧

hi! I think the brackets are not matching properly. Before copy&pasting a new “chapter” element, make sure you use “prettier” button to fix indentation…

var config = {
  style: "mapbox://styles/mapbox/streets-v11",
  accessToken:
  "pk.eyJ1IjoibG91ZGM5NTEiLCJhIjoiY2xteHM0ZWNqMTVoMzJqbnRua2x4N3Z0aCJ9.tugxtT5RuuQ9E46oqSPwjw",
  showMarkers: true,
  theme: "light",
  alignment: "right",
  title: "Women's House of Detention Walking Tour",
  subtitle: "An tale of stories contained between the walls of the prison and memory",
  byline: "Youth Public History Institute",
  footer: "Source: source citations, etc.",
  chapters: [
    {
      id: "chap-1",
      title: "Washington Square Park",
      image: "./path/to/image/source.png",
      description:
      "<p>This will be the first location on the walking tour.</p>",
      location: { 
        center: [-73.99824, 40.73076],
        zoom: 16.03,
        pitch: 60.0,
        bearing: 48.0
      },
      onChapterEnter: [
        // {
        //     layer: 'layer-name',
        //     opacity: 1
        // }
      ],
      onChapterExit: [
        // {
        //     layer: 'layer-name',
        //     opacity: 0
        // }
      ]
    },
    {
      id: "chap-2",
      title: "The Garnets’ House — 175 MacDougal Street [1850s-1880s]",
      image: "./path/to/image/source.png",
      description: "This will be the second location of the walking tour.",
      location: {
        center: [-73.99723, 40.73000],
        zoom: 18.87,
        pitch: 60.0,
        bearing: 0.0
      },
      onChapterEnter: [ 
        // {
        //     layer: 'layer-name',
        //     opacity: 1
        // }
      ],
      onChapterExit: [ {
        //     layer: 'layer-name',
        //     opacity: 0
        // }]
      }
      ]
    },
    {
      id: "chap-3",
      title: "Lorraine Hansberry’s House — 112 Waverly Place ",
      image: "./path/to/image/source.png",
      description: "This will be the second location of the walking tour.",
      location: {
        center: [-73.99723, 40.73000],
        zoom: 18.87,
        pitch: 60.0,
        bearing: 0.0
      },
      onChapterEnter: [],
      onChapterExit: []
    },
    {
      id: "chap-4",
      title: " Site on map Tour",
      image: "./path/to/image/source.png",
      description: "This will be the second location of the walking tour.",
      location: {
        center: [-73.99723, 40.73000],
        zoom: 18.87,
        pitch: 60.0,
        bearing: 0.0
      },
      onChapterEnter: [
         // {
        //     layer: 'layer-name',
        //     opacity: 1
        // }
      ],
      onChapterExit: [
        //     layer: 'layer-name',
        //     opacity: 0
        // }
      ]
    }
  ]
}