Removes outdated content from README

Removes the note about the control being based on another project, the platform screenshots, and the acknowledgments section.
This simplifies the README and removes redundant information.

Updates sponsor badge color.

Author: zleao

README.md

@@ -2,8 +2,6 @@
 
 A powerful AutoCompleteEntry control for .NET MAUI that makes suggestions to users as they type. This control provides rich customization options, data templating support, and works consistently across all supported platforms.
 
-**NOTE:** This control is based on the awesome [dotMortem/XamarinFormsControls/AutoSuggestBox](https://github.com/dotMorten/XamarinFormsControls/tree/main/AutoSuggestBox). with some simplifications and modifications of my own.
-
 [![NuGet](https://img.shields.io/nuget/v/zoft.MauiExtensions.Controls.AutoCompleteEntry.svg)](https://www.nuget.org/packages/zoft.MauiExtensions.Controls.AutoCompleteEntry/)
 
 ## 📚 Table of Contents
@@ -351,32 +349,6 @@ While the AutoCompleteEntry works great on Windows, some advanced styling featur
 
 All core functionality including filtering, selection, and data binding works perfectly on Windows.
 
-## 📱 Platform Screenshots
-
-### Windows
-
-|![](docs/Windows_1.png)|![](docs/Windows_2.png)|![](docs/Windows_3.png)|![](docs/Windows_4.png)|
-|:---:|:---:|:---:|:---:|
-|*Initial State*|*Typing & Filtering*|*Suggestion Selection*|*Selected Item Display*|
-
-### Android
-
-|![](docs/Android_1.png)|![](docs/Android_2.png)|![](docs/Android_3.png)|![](docs/Android_4.png)|
-|:---:|:---:|:---:|:---:|
-|*Initial State*|*Typing & Filtering*|*Suggestion Selection*|*Selected Item Display*|
-
-### iOS
-
-|![](docs/iOS_1.png)|![](docs/iOS_2.png)|![](docs/iOS_3.png)|![](docs/iOS_4.png)|
-|:---:|:---:|:---:|:---:|
-|*Initial State*|*Typing & Filtering*|*Suggestion Selection*|*Selected Item Display*|
-
-### MacCatalyst
-
-|![](docs/MacCatalyst_1.png)|![](docs/MacCatalyst_2.png)|![](docs/MacCatalyst_3.png)|![](docs/MacCatalyst_4.png)|
-|:---:|:---:|:---:|:---:|
-|*Initial State*|*Typing & Filtering*|*Suggestion Selection*|*Selected Item Display*|
-
 ## 🎨 Advanced Customization
 
 ### Custom Item Templates
@@ -490,7 +462,7 @@ private async Task TextChanged(string text)
 
 If you find this project helpful, please consider supporting its development:
 
-[![Sponsor](https://img.shields.io/badge/Sponsor-❤️-red?style=for-the-badge&logo=github-sponsors)](https://github.com/sponsors/zleao)
+[![Sponsor](https://img.shields.io/badge/Sponsor-❤️-blue?style=for-the-badge&logo=github-sponsors)](https://github.com/sponsors/zleao)
 
 Your support helps maintain and improve this project for the entire .NET MAUI community. Thank you! 🙏
 
@@ -504,6 +476,5 @@ This project is licensed under the MIT License - see the [LICENSE.md](LICENSE.md
 
 ## 🙏 Acknowledgments
 
-- Based on [dotMorten/XamarinFormsControls](https://github.com/dotMorten/XamarinFormsControls) AutoSuggestBox
 - Inspired by platform-native autocomplete controls
 - Built with ❤️ for the .NET MAUI community