Add OpenAI Agents SDK + Restate integration to the docs (#2359)

Co-authored-by: Kazuhiro Sera <seratch@openai.com>

Author: gvdongen

README.md

@@ -162,7 +162,7 @@ The Agents SDK automatically traces your agent runs, making it easy to track and
 
 ## Long running agents & human-in-the-loop
 
-You can use the Agents SDK [Temporal](https://temporal.io/) integration to run durable, long-running workflows, including human-in-the-loop tasks. View a demo of Temporal and the Agents SDK working in action to complete long-running tasks [in this video](https://www.youtube.com/watch?v=fFBZqzT4DD8), and [view docs here](https://github.com/temporalio/sdk-python/tree/main/temporalio/contrib/openai_agents).
+There are several options for long-running agents. Refer to [the documentation](https://openai.github.io/openai-agents-python/running_agents/#long-running-agents-human-in-the-loop) for details.
 
 ## Sessions
 

docs/running_agents.md

@@ -210,7 +210,14 @@ Set the hook per run via `run_config` or as a default on your `Runner` to redact
 
 ## Long running agents & human-in-the-loop
 
-You can use the Agents SDK [Temporal](https://temporal.io/) integration to run durable, long-running workflows, including human-in-the-loop tasks. View a demo of Temporal and the Agents SDK working in action to complete long-running tasks [in this video](https://www.youtube.com/watch?v=fFBZqzT4DD8), and [view docs here](https://github.com/temporalio/sdk-python/tree/main/temporalio/contrib/openai_agents).
+### Temporal
+
+You can use the Agents SDK [Temporal](https://temporal.io/) integration to run durable, long-running workflows, including human-in-the-loop tasks. View a demo of Temporal and the Agents SDK working in action to complete long-running tasks [in this video](https://www.youtube.com/watch?v=fFBZqzT4DD8), and [view docs here](https://github.com/temporalio/sdk-python/tree/main/temporalio/contrib/openai_agents). 
+
+### Restate
+
+You can use the Agents SDK [Restate](https://restate.dev/) integration for lightweight, durable agents, including human approval, handoffs, and session management. The integration requires Restate's single-binary runtime as a dependency, and supports running agents as processes/containers or serverless functions.
+Read the [overview](https://www.restate.dev/blog/durable-orchestration-for-ai-agents-with-restate-and-openai-sdk) or view the [docs](https://docs.restate.dev/ai) for more details.
 
 ## Exceptions