add desc

src/modules/invoice/invoice.controller.ts

@@ -56,7 +56,7 @@ export class InvoiceController {
 
   @Get('admin/invoice/:id')
   @UseGuards(AdminAuthGuard)
-  @ApiOperation({ summary: 'Get one invoice by id' })
+  @ApiOperation({ summary: 'Get one invoice by id (admin)' })
   findOneAsAdmin(@Param('id') id: string) {
     return this.invoiceService.findOneAsAdmin(id);
   }