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):

[tldr-bot]

The build for this PR failed with the following error(s):

pages/common/kdash.md:4: TLDR004 Command descriptions should end in a period

Please fix the error(s) and push again.

[spageektti]

Hi, thanks for your contribution

[spageektti]

Suggested change

	`kdash -t 100`
	`kdash -t {{100}}`

[spageektti]

Suggested change

	`kdash -p 200`
	`kdash -p {{200}}`

[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.

[dmmqz]

Suggested change

	`kdash -d`
	`kdash {{[-d|--debug]}}`

[dmmqz]

Suggested change

	`kdash -t 100`
	`kdash {{[-t|--tick-rate]}} 100`

[dmmqz]

Polling rate must be used together with tick rate, where polling rate is a multiple of the tick rate (e.g. kdash -t 200 -p 400).

Please also add the long form option for -p (--poll-rate).

$ kdash -p 400
Error: 'Poll rate must be multiple of tick-rate' at src/main.rs:95:5

[Managor]

Suggested change

	> Mode information: <https://github.com/kdash-rs/kdash/>.
	> Mode information: <https://github.com/kdash-rs/kdash/#usage>.

Quite a lot of scrolling to get to the usage instructions. Consider this.

[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.