Added grandparents to docs hierarchy

Author: jeggy

docs/creating-schema/type-system/enums.md

@@ -1,7 +1,8 @@
 ---
 layout: default
 title: Enums
-parent: Creating Schema/Type System
+grand_parent: Creating Schema
+parent: Type System
 nav_order: 2
 ---
 

docs/creating-schema/type-system/input-objects.md

@@ -1,7 +1,8 @@
 ---
 layout: default
 title: Input Objects
-parent: Creating Schema/Type System
+grand_parent: Creating Schema
+parent: Type System
 nav_order: 4
 ---
 

docs/creating-schema/type-system/objects-and-Interfaces.md

@@ -1,7 +1,8 @@
 ---
 layout: default
 title: Objects and Interfaces
-parent: Creating Schema/Type System
+grand_parent: Creating Schema
+parent: Type System
 has_children: true
 nav_order: 5
 ---

docs/creating-schema/type-system/objects-and-interfaces/extension-properties.md

@@ -1,6 +1,7 @@
 ---
 layout: default
 title: Extension Properties
+grand_parent: Type System
 parent: Objects and Interfaces
 nav_order: 2
 ---

docs/creating-schema/type-system/objects-and-interfaces/kotlin-properties.md

@@ -1,6 +1,7 @@
 ---
 layout: default
 title: Kotlin Properties
+grand_parent: Type System
 parent: Objects and Interfaces
 nav_order: 1
 ---

docs/creating-schema/type-system/objects-and-interfaces/union-properties.md

@@ -1,6 +1,7 @@
 ---
 layout: default
 title: Union Properties
+grand_parent: Type System
 parent: Objects and Interfaces
 nav_order: 3
 ---

docs/creating-schema/type-system/scalars.md

@@ -1,7 +1,8 @@
 ---
 layout: default
 title: Scalars
-parent: Creating Schema/Type System
+grand_parent: Creating Schema
+parent: Type System
 nav_order: 1
 ---
 

docs/creating-schema/type-system/unions.md

@@ -1,7 +1,8 @@
 ---
 layout: default
 title: Unions
-parent: Creating Schema/Type System
+grand_parent: Creating Schema
+parent: Type System
 nav_order: 3
 ---