Update README.md (#4794)

# External (non-OpenAI) Pull Request Requirements

Before opening this Pull Request, please read the dedicated
"Contributing" markdown file or your PR may be closed:
https://github.com/openai/codex/blob/main/docs/contributing.md

If your PR conforms to our contribution guidelines, replace this text
with a detailed and high quality description of your changes.

Author: pakrym-oai

sdk/typescript/README.md

@@ -52,9 +52,7 @@ for await (const event of events) {
 
 ### Structured output
 
-Provide a JSON schema per turn to have Codex respond with structured JSON. Pass schemas as
-plain JavaScript objects.
-
+The Codex agent can produce a JSON response that conforms to a specified schema. The schema can be provided for each turn as a plain JSON object.
 
 ```typescript
 const schema = {
@@ -71,7 +69,7 @@ const turn = await thread.run("Summarize repository status", { outputSchema: sch
 console.log(turn.finalResponse);
 ```
 
-You can also create JSON schemas for Zod types using the `zod-to-json-schema` package and setting the `target` to `"openAi"`.
+You can also create a JSON schema from a [Zod schema](https://github.com/colinhacks/zod) using the [`zod-to-json-schema`](https://www.npmjs.com/package/zod-to-json-schema) package and setting the `target` to `"openAi"`.
 
 ```typescript
 const schema = z.object({