已写下文字 20 篇，长路漫漫！
{
"data": { "url": "/assets/simple-jekyll-search/search.json" },
"encoding": {
"y": {"field": "date", "timeUnit": "month", "type": "ordinal"},
"x": {"field": "date", "timeUnit": "year"},
"color": {"field": "date", "aggregate": "count"}
},
"mark": "rect"
}