feat: added banner

README.md

@@ -9,6 +9,8 @@
 [![Follow on Twitter](https://img.shields.io/twitter/follow/nativebase.svg?label=follow+NativeBase)](https://twitter.com/nativebase)
 [![Github Stars](https://img.shields.io/github/stars/GeekyAnts/NativeBase)](https://img.shields.io/github/stars/GeekyAnts/NativeBase)
 
+**IMPORTANT MESSAGE** — If you are starting a new project with NativeBase, we recommend using [gluestack-ui](https://ui.gluestack.io/) instead. [Know More](https://nativebase.io/blogs/road-ahead-with-gluestack-ui).
+
 ## NativeBase is a mobile-first, accessible component library for building a consistent design system across android, iOS & web.
 
 [**Website**](https://nativebase.io/)
@@ -124,10 +126,10 @@ NativeBase 3.0 is a rich component library with nearly 40 components.
 JavaScript, React Native, Styled System
 
 ### Made with :heart: at [GeekyAnts](https://geekyants.com/?utm_source=nb-github&utm_medium=landing+page&utm_campaign=nativebase-github-cta)
+
 NativeBase is an open-source project made by the tech-savvy geeks at GeekyAnts.
 GeekyAnts is a group of React Native experts. Do [get in touch with us](https://geekyants.com/hire/?utm_source=nb-github&utm_medium=landing+page&utm_campaign=nativebase-github-hire-cta) for any help with your React Native project. Always happy to help!
 
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 ## 10. Compatible Versions
 
 | NativeBase                       | React Native                                               |
@@ -192,4 +194,3 @@ Support this project with your organization. Your logo will show up here with a
 ## 14. License
 
 Licensed under the MIT License, Copyright © 2021 GeekyAnts. See [LICENSE](https://github.com/GeekyAnts/NativeBase/blob/master/LICENSE) for more information.
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