Clarify type name introspection detail.

mandiwise · benjie · web-flow · commit c073b58a01a4 · 2024-11-08T13:50:58.000-07:00
Co-authored-by: Benjie &lt;benjie@jemjie.com&gt;
diff --git a/src/pages/learn/introspection.mdx b/src/pages/learn/introspection.mdx
@@ -25,7 +25,7 @@ query {
 }
 ```
 
-We didn't add the `__typename` field to our GraphQL API explicitly—the GraphQL specification says that it must be provided to clients by a GraphQL implementation. This field can be queried for any field with an Object, Interface, or Union type as an output type.
+We didn't add the `__typename` field to our GraphQL API explicitly—the GraphQL specification says that it must be provided to clients by a GraphQL implementation. This field can be queried for any field with an Object, Interface, or Union type as the underlying output type.
 
 ## Schema introspection
 

Original file line number	Diff line number	Diff line change
`@@ -25,7 +25,7 @@ query {`
`25`	`25`	`}`
`26`	`26`	```
`27`	`27`
`28`		-We didn't add the `__typename` field to our GraphQL API explicitly—the GraphQL specification says that it must be provided to clients by a GraphQL implementation. This field can be queried for any field with an Object, Interface, or Union type as an output type.
	`28`	+We didn't add the `__typename` field to our GraphQL API explicitly—the GraphQL specification says that it must be provided to clients by a GraphQL implementation. This field can be queried for any field with an Object, Interface, or Union type as the underlying output type.
`29`	`29`
`30`	`30`	`## Schema introspection`
`31`	`31`