编辑以下JSON数据中的错误，并添加新数据：“name”为“Lisa”，“age”为19。
{
    "students": [
        {
            "name": "John",
            "age": 22,
            "gender": "male"
        },
        {
            "name": "Emily",
            "age": 20,
            "gender": "female"
        },
    ]
}
以下是修改后的JSON数据，添加了名为“Lisa”，年龄为19的新数据：
```
{
    "students": [
        {
            "name": "John",
            "age": 22,
            "gender": "male"
        },
        {
            "name": "Emily",
            "age": 20,
            "gender": "female"
        },
        {
            "name": "Lisa",
            "age": 19,
            "gender": "female"
        }
    ]
}
```