Chinese translation modification

[sanglide]

update the following files:

1. https://github.com/chaoss/wg-diversity-inclusion/blob/master/focus-areas/project-and-community/documentation-usability.md
2. https://github.com/chaoss/wg-diversity-inclusion/blob/master/focus-areas/project-and-community/issue-label-inclusivity.md
3. https://github.com/chaoss/wg-dei/blob/main/focus-areas/project-and-community/documentation-discoverability.md

[eyehwan]

@sanglide Hi, please execute git commit -sm "" to sign off dco. :)

[eyehwan]

Still require for sign off commit action. 👍