How to add a custom HTML tag in vscode

Question

i know vscode has custom snippet like this

    {
        "foo": {
            "prefix": "foo",
            "body": [
                "<foo FIELD='${1|one,two,three|}'></foo>"
            ],
            "description": "a custom html tag with special prop"
        }
    }

but in fact, that is not good enough, how to show every different attribute what is its meaning?

Is there anything not so difficult ways can i do that? i try TextMate or VSCode plugin its so hard for me.

If there is no, please just tell me, I will continue to try hard.