Change "Date" to "Published" in the Metadata example

[BlueHtml]

Hello, My English is poor. Below is a machine-translated version.

In the Metadata document, there is an example with a "Date" field, but it is actually invalid. Could you please change it to "Published" instead? (This issue caused an error during generation and confused me for a few minutes: Could not parse published date for file)

Also, I would like to ask if you can provide all the options for Metadata?