插件和主题中的新核心功能系统规格

[loic (Loïc Guitaut)]

这是一个好主意，已经在 DEV: Add short explanations for the core features specs by Flink · Pull Request #52 · discourse/discourse-theme-skeleton · GitHub 和 DEV: Add short explanations for the core features specs by Flink · Pull Request #78 · discourse/discourse-plugin-skeleton · GitHub 中完成