Fix duplicated default tag in swagger

src/app.controller.ts

@@ -3,7 +3,7 @@ import { ApiOperation, ApiResponse, ApiTags } from '@nestjs/swagger'
 
 import { AppService } from './app.service'
 
-@ApiTags('Default')
+@ApiTags('Example')
 @Controller()
 export class AppController {
   constructor(private readonly appService: AppService) {}