Google Recommended Additional Product JSON Fields

[vminvestments]

I really like the next-seo plugin. It's so much easier than writing the script JSON out. However, there are two Product JSON fields that I would like to see added. Google is alerting me of non-critical errors that could boost traffic for my clients if they were present.

Fields:
hasMerchantReturnPolicy (in offers)
shippingDetails (in offers)

Small things like these fields can give you the edge in organic search. I would love to see these added!

[gijsbotje]

@vminvestments I added the hasMerchantReturnPolicy in #1511. @garmeeh published it in https://github.com/garmeeh/next-seo/releases/tag/v6.8.0.