v0.2.0

Added

• Charts. last-word 0.10 writes a native chart block whose option is an
  ECharts option (the same field dark-slide charts take); DocViewer draws it
  with fancy-echarts, sized as the writer sizes it (widthPx / heightPx, a
  width percentage of the column, or the full column at 0.6 of its width).
  Drawn as Word draws the file by default: last-word's (Office's) palette,
  legend under the plot, values above a bar or point (past the end of a
  horizontal bar), axis titles centred and kept clear of the axis labels. An
  option that sets any of these keeps its own. A chart with no series is
  skipped rather than drawn as an empty box. Checked beside LibreOffice's
  render of a seven-chart last-word document.
• @particle-academy/fancy-echarts is an OPTIONAL peer (>=6.1.0 <7.0.0),
  loaded only when a document has a chart. Without it a chart shows a labelled
  placeholder instead of failing. What to do: install it if your documents
  have charts.

Known

• A chart's numberFormat (an Excel format) is not applied to its labels yet:
  a value Word shows as 172 shows as 171.5.