Deprecate repository and redirect to active resources (#617)

Author: osanseviero

CODEOWNERS

@@ -1,3 +1,4 @@
+# THIS REPOSITORY IS DEPRECATED AND NO LONGER MAINTAINED.
 * @google/generative-ai-admin
 
 # demos/palm/web/talking-character

CONTRIBUTING.md

@@ -1,3 +1,11 @@
+> [!WARNING]
+> **This repository is deprecated and no longer maintained.**
+>
+> Please visit the following active resources:
+> * **Gemini Documentation**: [ai.google.dev/gemini-api/docs](https://ai.google.dev/gemini-api/docs)
+> * **Gemini Cookbook**: [github.com/google-gemini/cookbook](https://github.com/google-gemini/cookbook)
+> * **Gemma Cookbook**: [github.com/google-gemini/gemma-cookbook](https://github.com/google-gemini/gemma-cookbook)
+
 # How to Contribute
 
 We would love to accept your patches and contributions to this project.

DEMO_MAINTAINERS.md

@@ -1,3 +1,11 @@
+> [!WARNING]
+> **This repository is deprecated and no longer maintained.**
+>
+> Please visit the following active resources:
+> * **Gemini Documentation**: [ai.google.dev/gemini-api/docs](https://ai.google.dev/gemini-api/docs)
+> * **Gemini Cookbook**: [github.com/google-gemini/cookbook](https://github.com/google-gemini/cookbook)
+> * **Gemma Cookbook**: [github.com/google-gemini/gemma-cookbook](https://github.com/google-gemini/gemma-cookbook)
+
 # Demo Maintenance
 
 We have several [demo applications](https://github.com/google/generative-ai-docs/tree/main/demos/palm) hosted in this repository that are referenced in the [AI for Developers](https://ai.google.dev/develop/sample-apps) site. We're looking to the community to help maintain them. 

README.md

@@ -1,6 +1,14 @@
-# Google Gemini API Website & Documentation
+> [!WARNING]
+> **This repository is deprecated and no longer maintained.**
+>
+> Please visit the following active resources:
+> * **Gemini Documentation**: [ai.google.dev/gemini-api/docs](https://ai.google.dev/gemini-api/docs)
+> * **Gemini Cookbook**: [github.com/google-gemini/cookbook](https://github.com/google-gemini/cookbook)
+> * **Gemma Cookbook**: [github.com/google-gemini/gemma-cookbook](https://github.com/google-gemini/gemma-cookbook)
 
-These are the source files for the guide and tutorials on
+# [Deprecated] Google Gemini API Website & Documentation
+
+These are the source files for some guides and tutorials on
 the [Generative AI developer site](https://ai.google.dev/), home to
 the Gemini API and Gemma.
 
@@ -10,17 +18,6 @@ the Gemini API and Gemma.
 | [`demos/`](demos/) | Demos apps. Larger than examples, typically consists of working apps. |
 | [`examples/`](examples/) | Examples. Smaller, single-purpose code for demonstrating specific concepts. |
 
-
-
-To contribute to the site documentation, please read
-[CONTRIBUTING.md](CONTRIBUTING.md).
-
-To contribute as a demo app maintainer, please read
-[DEMO_MAINTAINERS.md](DEMO_MAINTAINERS.md).
-
-To file an issue, please use the
-[GitHub issue tracker](https://github.com/google/generative-ai-docs/issues/new).
-
 ## License
 
 [Apache License 2.0](LICENSE)

site/en/README.md

@@ -1,3 +1,11 @@
+> [!WARNING]
+> **This repository is deprecated and no longer maintained.**
+>
+> Please visit the following active resources:
+> * **Gemini Documentation**: [ai.google.dev/gemini-api/docs](https://ai.google.dev/gemini-api/docs)
+> * **Gemini Cookbook**: [github.com/google-gemini/cookbook](https://github.com/google-gemini/cookbook)
+> * **Gemma Cookbook**: [github.com/google-gemini/gemma-cookbook](https://github.com/google-gemini/gemma-cookbook)
+
 # Generative AI Developer Docs
 
 These are the source files for the Generative AI and PaLM API site. The