Hello Yutaro Tanaka,
Thank you for bringing this to our attention. It may have just been a typo. All of our translations come through https://translations.atlassian.com, so please feel free to submit translation improvements:
You can even correct it and then download the improved version. For more information:
Connect with like-minded Atlassian users at free events near you!Find a group
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no AUG chapters near you at the moment.Start an AUG
We're bringing product updates and pro tips on teamwork to ten cities around the world.Save your spot