Fix the problem that rocket example cannot pass the test.

async-graphql-rocket/Cargo.toml

@@ -4,7 +4,7 @@ version = "1.17.21"
 authors = ["Daniel Wiesenberg <daniel@simplificAR.io>"]
 edition = "2018"
 description = "async-graphql for Rocket.rs"
-publish = true
+#publish = true
 license = "MIT/Apache-2.0"
 documentation = "https://docs.rs/async-graphql/"
 homepage = "https://github.com/async-graphql/async-graphql"

async-graphql-rocket/src/lib.rs

@@ -29,7 +29,7 @@ use yansi::Paint;
 ///
 /// ```rust,no_run
 ///
-/// use async_graphql::{EmptyMutation, EmptySubscription, Schema};
+/// use async_graphql::{EmptyMutation, EmptySubscription, Schema, Object};
 /// use async_graphql_rocket::{GQLRequest, GraphQL, GQLResponse};
 /// use rocket::{response::content, routes, State, http::Status};
 ///