Read knowledge from documents like `.docx`, `.odt`,…

-   _Note: `.pdf` documents are not supported by this package. Use the [`@promptbook/pdf`](https://www.npmjs.com/package/@promptbook/pdf) package instead._
-   _Note: For legacy documents use [`@promptbook/legacy-documents`](https://www.npmjs.com/package/@promptbook/legacy-documents)_
