field merging - field TYPES must not differ (#979)

field merging - field TYPES must not differ

Co-authored-by: Roman Ivantsov <roman.ivantsov@microsoft.com>
Co-authored-by: Benjie <benjie@jemjie.com>
Co-authored-by: Lee Byron <lee@leebyron.com>

Author: 4 people

spec/Section 5 -- Validation.md

@@ -556,8 +556,8 @@ fragment safeDifferingArgs on Pet {
 ```
 
 However, the field responses must be shapes which can be merged. For example,
-scalar values must not differ. In this example, `someValue` might be a `String`
-or an `Int`:
+leaf types must not differ. In this example, `someValue` might be a `String` or
+an `Int`:
 
 ```graphql counter-example
 fragment conflictingDifferingResponses on Pet {