Revise README for OpenRouter SDK (Beta)

Updated SDK title and removed production warning.

Author: mattapperson

README.md

@@ -1,11 +1,7 @@
-# OpenRouter SDK
+# OpenRouter SDK (Beta)
 
 The [OpenRouter](https://openrouter.ai/) SDK gives access to over 300 large language models on the OpenRouter chat and completion APIs, as well as the rest of our full API. For more information about the API: [OpenRouter Documentation](https://openrouter.ai/docs)
 
-<br /><br />
-> [!IMPORTANT]
-> This SDK is not yet ready for production use. To complete setup please follow the steps outlined in your [workspace](https://app.speakeasy.com/org/openrouter/sdk). Delete this section before > publishing to a package manager.
-
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