sets timelineConfig.brushMin to 2 when time is on an axis

[davelandry]

Was testing with this DataMexico quarterly data:

const data = "https://dev-api.datamexico.org/tesseract/data.jsonrecords?cube=fdi_9_quarter_investment&drilldowns=Quarter&measures=Investment";

new d3plus.LinePlot()
  .data(data, resp => resp.data)
  .config({
    groupBy: d => "Line",
    locale: "es-ES",
    time: "Quarter",
    x: "Quarter",
    y: "Investment"
  })
  .render();

[ffigueroal]

Looks great @davelandry! I also tested it with monthly and yearly data from the OEC.