更新历史 - 圆方树

fix: sample code reference

feat: add code block tabs

feat(ds, graph): add semantic label for paragraph (#4342)

fix(graph): separated code from markdown file and add notes (#3561)

feat(graph, geometry): add Python example (#3572)

refactor(graph/block-forest): Vectorize figures (#3327)

apply bot

Merge pull request #2904 from GitPinkRabbit/master

依照 code review 中的建议进行修改

Update block-forest.md

添加第三道例题，并修复第二道例题标题错误

添加第二道例题

尝试修改缩进

添加图片来源

Apply suggestions from code review

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