style-guide: recommend hyphen over en dash and em dash

[cyqsimon]

Continuing discussion in #15384 (comment).

@spageektti and I are in favour of hyphens in lieu of exceptional circumstances. I'd like to hear the opinions of other maintainers.

[cyqsimon]

I did a quick search over the current English pages. It seems like there were only four instances of en dashes or em dashes.

Notably, the one in bundletool.md seems to be an example of "author not knowing/noticing the subtle difference leading to a mistake".

Usage seems to be more common in Cyrillic languages, but I'm not sure whether that's a tendency of the language or of the author.

[sebastiaanspeck]

I did a quick search over the current English pages. It seems like there were only four instances of en dashes or em dashes.

Notably, the one in bundletool.md seems to be an example of "author not knowing/noticing the subtle difference leading to a mistake".

Usage seems to be more common in Cyrillic languages, but I'm not sure whether that's a tendency of the language or of the author.

I opened a PR for bundletool.md: #15410

[sebastiaanspeck]

@kbdharun I now see we do not check if a PR without any assigned reviewers is still in "Draft". This is why the labeler assigned "review needed" just yet. I would also let the labeler action run when we change a PR from "draft" to "ready for review".

[kbdharun]

LGTM, thanks for the nice addition.