[BUG] Page TypeORM - /tutorials/typeorm (Typo)
## Create an injectable repository
```
import {Injectable} from "@tsed/di";
import {DataSource} from "typeorm";
import {MySqlDataSource} from "../datasources/MySqlDataSource";
import {User} from "../entities/User";

export const UserRepository = MySqlDataSource.getRepository(User).extends({
  findByName(firstName: string, lastName: string) {
    return this.createQueryBuilder("user")
      .where("user.firstName = :firstName", {firstName})
      .andWhere("user.lastName = :lastName", {lastName})
      .getMany();
  }
});
export const USER_REPOSITORY = Symbol.for("UserRepository");
export type USER_REPOSITORY = typeof UserRepository;

registerProvider({
  provide: USER_REPOSITORY,
  useValue: UserRepository
});

```

`export const UserRepository = MySqlDataSource.getRepository(User).extends({` 

Typo: extends -> extend