[Typo]: em dash spacing

Summary

Throughout the documentation, there's inconsistent use of the em dash (—, or —). Sometimes there's spaces surrounding them, and sometimes not.

Page

N/A

Details

Typically, em dashes are used without surrounding spaces. Personally, I prefer that style. However, I think whichever's fine as long as you follow a consistent style throughout.

I can open a PR making all these changes once I know which way we want to go: spaces or not.

該 issue 沒有指定具體檔案，因此先檢查文件中現有的破折號用法，並閱讀連結的標點符號指南。確認專案要求使用空格還是不使用空格，然後一致地更新文件中的所有出現位置，並驗證不再存在空格混用的情況。