doc: Added explanation of chunk_overlap to knowledge API

[yagiyuki]

Summary

The following four Knowledge APIs allow you to specify "chunk_overlap" as a parameter when creating a document.
However, this is not described in the API specifications, so it needs to be added.

• Create a Document from Text
• Create a Document from a File
• Update a Document with Text
• Update a Document with a File

Fixes #12180

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Checklist

Important

Please review the checklist below before submitting your pull request.

• This change requires a documentation update, included: Dify Document
• I understand that this PR may be closed in case there was no previous discussion or issues. (This doesn't apply to typos!)
• I've added a test for each change that was introduced, and I tried as much as possible to make a single atomic change.
• I've updated the documentation accordingly.
• I ran dev/reformat(backend) and cd web && npx lint-staged(frontend) to appease the lint gods

[jasonfish568]

Commit message not up to the community standard. I would suggest you do some readings on commit message format and also properlly include description in the PR.

[yagiyuki]

Commit message not up to the community standard. I would suggest you do some readings on commit message format and also properlly include description in the PR.

@jasonfish568

I have updated the PR Summary to include a more detailed description of the changes. Regarding the commit message format, I will make sure to follow the community standards for future commits.

[crazywoola]

Hello there, please update the docs in JA as well.

[yagiyuki]

@crazywoola

Hello there, please update the docs in JA as well.

Thank you for your feedback. Currently, there is no documentation in Japanese for the Knowledge API.
https://github.com/langgenius/dify/tree/5b01eb9437b24a260bf4ec3084256d9995bcf93a/web/app/(commonLayout)/datasets/template

Therefore, I don't think there is any need to take action.

If you think adding it would be helpful, feel free to create a new issue—or let me know, and I can create one.

[crazywoola]

@crazywoola

Hello there, please update the docs in JA as well.

Thank you for your feedback. Currently, there is no documentation in Japanese for the Knowledge API. https://github.com/langgenius/dify/tree/5b01eb9437b24a260bf4ec3084256d9995bcf93a/web/app/(commonLayout)/datasets/template

Therefore, I don't think there is any need to take action.

If you think adding it would be helpful, feel free to create a new issue—or let me know, and I can create one.

Thanks :)

Actually I figure it would be helpful to add JA document to this section, because we have added several templates in API develop section right now.

https://github.com/langgenius/dify/blob/6b49889041f5d25cd2c5bc2e0f7915abb7027027/web/app/components/develop/template/template.ja.mdx

We appreciate that you could add this if you have some spare time.

[yagiyuki]

@crazywoola

Thank you.

Actually I figure it would be helpful to add JA document to this section, because we have added several templates in API develop section right now.

https://github.com/langgenius/dify/blob/6b49889041f5d25cd2c5bc2e0f7915abb7027027/web/app/components/develop/template/template.ja.mdx

We appreciate that you could add this if you have some spare time.

I added a Japanese-language issue to the Knowledge API.
#12359