Merge pull request #3327 from my-organization-for-forks/master

docs: fix typo in code snippet

Author: kamilmysliwiec

content/graphql/resolvers-map.md

@@ -583,12 +583,12 @@ Assuming that we use the schema first approach and have enabled the typings gene
 
 ```typescript
 @@filename(graphql)
-export (class Author {
+export class Author {
   id: number;
   firstName?: string;
   lastName?: string;
   posts?: Post[];
-})
+}
 export class Post {
   id: number;
   title: string;