Don't break markdown formatting

src/pages/blog/2025-06-19-multioption-inputs-with-oneof/index.mdx

@@ -115,25 +115,24 @@ summed it up in
 
 Since then there have been a number of reports of success:
 
-> I'm very happy with where this landed. We'd use it internally at my company.
-> --
+> I'm very happy with where this landed. We'd use it internally at my company. —
 > [Ethan Resnick](https://github.com/graphql/graphql-spec/pull/825#issuecomment-2128262620)
 
 > More positive feedback: We are using it at HubSpot through the graphql-java
-> implementation and look forward to it becoming standardized. --
+> implementation and look forward to it becoming standardized. —
 > [Henry Q. Dineen](https://github.com/graphql/graphql-spec/pull/825#issuecomment-2128324080)
 
 > I implemented support for OneOf input objects for the Caliban GraphQL library
 > (Scala) [...] it's been fairly straightforward implementing support for it and
-> I couldn't really identify any areas that could have been improved. --
+> I couldn't really identify any areas that could have been improved. —
 > [kyri-petrou](https://github.com/kyri-petrou)
 
 > We have been eagerly waiting at Jobber for this to land as well. [...] We have
-> many use cases internally for it and we're very excited to see this land! --
+> many use cases internally for it and we're very excited to see this land! —
 > [Clinton Pahl](https://github.com/graphql/graphql-spec/pull/825#issuecomment-2135724148)
 
 > Colleagues at work (Atlassian) have been really happy with @oneOf, works
-> exactly as you want it to and I haven't heard any negative feedback. --
+> exactly as you want it to and I haven't heard any negative feedback. —
 > [Donna Zhou](https://github.com/dondonz)
 
 ## Availability