docs:Modified the language naming of files and changed some error paths

[sealbell]

🔍 What type of PR is this?

/kind documentation

👀 What this PR does / why we need it:

This PR updates document file extensions to include language-specific suffixes, such as _zh_CN for Simplified Chinese documents. This change makes it easier to identify and manage documents written in different languages within the repository.

• My pull request adheres to the code style of this project
• My code requires changes to the documentation
• I have updated the documentation as required
• All the tests have passed

🅰 Which issue(s) this PR fixes:

Fixes

📝 Special notes for your reviewer:

This change does not alter the content of the documents but merely renames them to improve organization and accessibility for contributors and users.

🎯 Describe how to verify it

Verify the PR by checking the updated file names to ensure they now include the appropriate language suffixes. Additionally, ensure no links are broken as a result of the file name changes.

📑 Additional documentation e.g., RFC, notion, Google docs, usage docs, etc.:

For further details on naming conventions and managing multilingual documents, refer to our documentation guidelines at [link to guidelines].

[sealbell]

It’s too late. Why can’t I delete these previous junk submissions? But I want to sleep, so I’ll leave them alone for now♪(^∇^*)