Update top-level README.md

Author: seratch

README.md

@@ -4,11 +4,9 @@ The OpenAI Agents SDK is a lightweight yet powerful framework for building multi
 
 <img src="https://cdn.openai.com/API/docs/images/orchestration.png" alt="Image of the Agents Tracing UI" style="max-height: 803px;">
 
-
 > [!NOTE]
 > Looking for the Python version? Check out [Agents SDK Python](https://github.com/openai/openai-agents-python).
 
-
 ## Core concepts
 
 1. **Agents**: LLMs configured with instructions, tools, guardrails, and handoffs.
@@ -52,8 +50,10 @@ Experimental support:
 
 ### Installation
 
+This SDK currently does not work with `[email protected]` and above. Please install `[email protected]` (or any older version) explicitly. We will resolve this dependency issue soon. Please check [this issue}(https://github.com/openai/openai-agents-js/issues/187) for updates.
+
 ```bash
-npm install @openai/agents
+npm install @openai/agents 'zod@<=3.25.67'
 ```
 
 ## Hello world example