Merge pull request graphql#630 from aberonni/patch-1

Update Tutorial-ExpressGraphQL.md

Author: orta

site/graphql-js/Tutorial-ExpressGraphQL.md

@@ -41,7 +41,7 @@ app.use('/graphql', graphqlHTTP({
   graphiql: true,
 }));
 app.listen(4000);
-console.log('Running a GraphQL API server at localhost:4000/graphql');
+console.log('Running a GraphQL API server at http://localhost:4000/graphql');
 ```
 
 You can run this GraphQL server with: