Update README.md

Author: puppetsw

README.md

@@ -1,6 +1,26 @@
-# AvaloniaTokenizingTextBox
-An attempt at converting WCT TokenizingTextBox to Avalonia
+AvaloniaTokenizingTextBox
+============
+![TextBoxExample](https://user-images.githubusercontent.com/79826944/119290212-42ac5b80-bc8b-11eb-8518-a5a545c68705.gif)
 
-Lots of help from and ideas from https://github.com/iterate-ch/tokenizingtextbox
+A Tokenizing TextBox for [Avalonia](https://github.com/AvaloniaUI/Avalonia), similar to the one created by [Marcus Perryman](https://github.com/marcpems). Ported from [WindowsCommunityToolkit](https://github.com/windows-toolkit/WindowsCommunityToolkit)
 
-![TextBoxExample](https://user-images.githubusercontent.com/79826944/119290212-42ac5b80-bc8b-11eb-8518-a5a545c68705.gif)
+Partially based on work from [Jöran Malek](https://github.com/iterate-ch/tokenizingtextbox)
+
+## Usage
+
+```xml
+<DockPanel>
+  <c:TokenizingTextBox DockPanel.Dock="Top"
+    TokenDelimiter=";"
+    Items="{Binding Tokens}"
+    SelectedItem="{Binding SelectedItem}" />
+</DockPanel>
+```
+
+## Licence
+
+AvaloniaTokenizingTextBox is under the [MIT license](https://github.com/puppetsw/AvaloniaTokenizingTextBox/blob/master/LICENSE).
+
+## Contributing
+
+All contributions and improvements are welcome!