Add intros to GraphQL pages (#23054)

dawei-wang · subatoi · web-flow · commit 9da23e41e689 · 2023-02-02T08:29:58.000Z
Co-authored-by: Ben Ahmady &lt;32935794+subatoi@users.noreply.github.com&gt;
diff --git a/content/graphql/reference/enums.md b/content/graphql/reference/enums.md
@@ -1,5 +1,6 @@
 ---
 title: Enums
+intro: Enums represent possible sets of values for a field.
 redirect_from:
   - /v4/enum
   - /v4/reference/enum
diff --git a/content/graphql/reference/interfaces.md b/content/graphql/reference/interfaces.md
@@ -1,5 +1,6 @@
 ---
 title: Interfaces
+intro: Interfaces serve as parent objects from which other objects can inherit.
 redirect_from:
   - /v4/interface
   - /v4/reference/interface
diff --git a/content/graphql/reference/mutations.md b/content/graphql/reference/mutations.md
@@ -1,5 +1,6 @@
 ---
 title: Mutations
+intro: The mutation type defines GraphQL operations that change data on the server.
 redirect_from:
   - /v4/mutation
   - /v4/reference/mutation
diff --git a/content/graphql/reference/queries.md b/content/graphql/reference/queries.md
@@ -1,5 +1,6 @@
 ---
 title: Queries
+intro: The query type defines GraphQL operations that retrieve data from the server.
 miniTocMaxHeadingLevel: 3
 redirect_from:
   - /v4/query
