docs: update to reference scalars.graphql.org specification for DateTime

[setchy]

Update to reference the https://scalars.graphql.org/ specification. 🤞 that more will come in time

[dondonz]

Thanks for updating the docs!

We recently launched the GraphQL Scalars project and published a complete DateTime specification. The DateTime implementation in this library is compliant with this spec. Could you please update the link from the graphql-scalars.com URL to the new spec link? https://scalars.graphql.org/andimarek/date-time.html

FYI here's the blog post announcing the initiative https://graphql.org/blog/2023-01-14-graphql-scalars/ and the GraphQL Scalars home page https://scalars.graphql.org/

[setchy]

Ah, thanks @dondonz - I did read that blog article actually but just assumed (incorrectly) it was graphql-scalars.com. Thanks for the pointer.

@andimarek - side note - would it make sense to have a banner on graphql-scalars.com pointing people back to https://scalars.graphql.org/ etc?

[dondonz]

Thanks for the PR!