Minor update

README.md

@@ -562,8 +562,6 @@ services:
           avatar
         }
       }
-    headers:
-      Content-Type: application/json # XXX: as of v1.9.2, this header is automatically added when graphql is set to true
     conditions:
       - "[STATUS] == 200"
       - "[BODY].data.users[0].gender == female"

core/service_test.go

@@ -188,7 +188,7 @@ func TestService_buildHTTPRequestWithGraphQLEnabled(t *testing.T) {
 		Conditions: []*Condition{&condition},
 		GraphQL:    true,
 		Body: `{
-  user(gender: "female") {
+  users(gender: "female") {
     id
     name
     gender