kdash: add page

[Akasan]

• The page(s) are in the correct platform directories: common, linux, osx, windows, sunos, android, etc.
• The page(s) have at most 8 examples.
• The page description(s) have links to documentation or a homepage.
• The page(s) follow the content guidelines.
• The page(s) follow the style guide.
• The PR title conforms to the recommended templates.
• Version of the command being documented (if known):

[spageektti]

Hi, thanks for your contribution

[Managor]

Consider submitting the translation after the english page has been merged so that we don't have to wait for translation maintainers to approve and so that fixes don't have to be applied multiple times.

[dmmqz]

Please also apply these changes to the Japanese translation.

[Akasan]

Consider submitting the translation after the english page has been merged so that we don't have to wait for translation maintainers to approve and so that fixes don't have to be applied multiple times.

Thank you for your review.
That's true. It would be better to create the page in English first, and then translate it, which would reduce the number of changes. Thank you.

[Managor]

Can you address the issues highlighted in this PR?

[spageektti]

@Akasan

[Akasan]

Can you address the issues highlighted in this PR?

Sorry for replying late. I'll handle these issues ASAP.

[tldr-bot]

Hello! I've noticed something unusual when checking this PR:

• The page pages.ja/common/kdash.md has a more info link that does not match the one in the English page. Please check the "More information:" translation as well using https://github.com/tldr-pages/tldr/blob/main/contributing-guides/translation-templates/more-info-link.md.

Is this intended? If so, just ignore this comment. Otherwise, please double-check the commits.

[Managor]

Looks good to go after the last suggestion is implemented.

[Managor]

I'll just push these simple changes and merge.