Grouping Checklists

There are currently some checklists on different sections of devguide, such as grammar addition checklist and opcode addition checklist and I wanted to discuss adding a checklist for future directives (like from __future__ import <directive>).

Should we group that checklists in a page with divisions, and should we add a checklist for future directives (because it is also a complex process). (I can prepare a patch if agreed)

查看 devguide 中现有的 grammar addition checklist 和 opcode addition checklist 部分，然后确定是否应将它们归并到同一页面。定义 future-directive checklist 的范围，并确认文档结构和 checklist 内容已经达成一致，然后再考虑工作完成。