Whitespace

Co-authored-by: Glen <glen.84@gmail.com>

Author: benjie

spec/Section 5 -- Validation.md

@@ -2050,6 +2050,7 @@ mutation addCat($cat: CatInput!) {
     name
   }
 }
+
 mutation addCatWithDefault($cat: CatInput! = { name: "Brontie" }) {
   addPet(pet: { cat: $cat }) {
     name
@@ -2063,6 +2064,7 @@ mutation addNullableCat($cat: CatInput) {
     name
   }
 }
+
 mutation addNullableCatWithDefault($cat: CatInput = { name: "Brontie" }) {
   addPet(pet: { cat: $cat }) {
     name