nav:
  - 概览: index.md
  - 设计哲学: design-philosophy.md
  - FAQ: faq.md
  - 致谢: credits.md
  - 外部数据源: external-data-sources.md
  - License & Attribution: license-and-attribution.md
  - Terms of Service: terms-of-service.md
  - 历史:
    - 图谱可视化调研: graph-visualization-research.md
