doc: tweak PR comment in json.cshtml (#1849)
doc: tweak PR comment in json.cshtml (#1849)

It appears that [some PRs have now been turned down](https://github.com/SchemaStore/schemastore/pulls?q=is%3Aunmerged+is%3Aclosed+is%3Apr)

Ref #586
schemastore/schemastore,schemastore/schemastore