Update advanced.md (#1362)

Author: AhsanFazal

docs/src/content/docs/advanced.md

@@ -87,7 +87,7 @@ import { paths } from "./api/v1/my-schema"; // generated by openapi-typescript
 const BASE_URL = "https://myapi.com/v1";
 // End Settings
 
-// type helpers — ignore these; these just make TS lookups better
+// type helpers — ignore these; these just make TS lookups better
 type FilterKeys<Obj, Matchers> = { [K in keyof Obj]: K extends Matchers ? Obj[K] : never }[keyof Obj];
 type PathResponses<T> = T extends { responses: any } ? T["responses"] : unknown;
 type OperationContent<T> = T extends { content: any } ? T["content"] : unknown;
@@ -121,6 +121,7 @@ export function mockResponses(responses: {
     }
     const { status, body } = (responses as any)[mockedPath][method];
     return { status, body: JSON.stringify(body) };
+  })
 }
 
 // helper function that matches a realistic URL (/users/123) to an OpenAPI path (/users/{user_id}