add links

Change-Id: I992b94277878190aed5270adbb2b65d0f73423e6

README.md

@@ -14,20 +14,16 @@ The Google AI Python SDK is the easiest way for Python developers to build with
 5. For detailed instructions, try the 
 [Python SDK tutorial](https://ai.google.dev/tutorials/python_quickstart) on [ai.google.dev](https://ai.google.dev).
 
-Important: There are currently two different python SDKs for the Gemini API.
-This repository is in the process of converting from the old one (`google-generativeai`) to
-the new one (`google-genai`). The 
-[Migration guide](https://ai.google.dev/gemini-api/docs/migrate) is attached below.
-
-## Upgrade to the Google Gen AI SDK for Python
+## Upgrade to the new Google Gen AI SDK for Python
 
 Until now, the `google-generativeai` SDK package has been the recommended tool
 for accessing the Gemini API from Python. While this package gets the job done,
 the long incremental development process (starting from the PaLM API in 2023)
 made it impossible to implement some important high level features without
 significant breakages.
 
-The new SDK package, `google-genai`, is a from-scratch rewrite designed to
+The new SDK package, `google-genai` ([github](https://github.com/googleapis/python-genai),
+[pypi](https://pypi.org/project/google-genai/)), is a from-scratch rewrite designed to
 resolve these problems. Among other things, the new package:
 
 *   Is clear about when clients are created, configured, and used (clear