Readme (#15)

* add readme

* improve readme

Author: ateoi

README.md

@@ -6,7 +6,7 @@ This is a [WiX v3](https://wixtoolset.org/docs/v3/) based installer for the
 ## Build prerequisites
 
 - [Visual Studio 2022 (any edition)](https://visualstudio.microsoft.com/#vs-section)
-- [WiX v3](https://wixtoolset.org/docs/wix3/) (if packaging on Windows)
+- [WiX v3](https://wixtoolset.org/docs/wix3/)
 - [WiX v3 - Visual Studio 2022 Extension](https://marketplace.visualstudio.com/items?itemName=WixToolset.WixToolsetVisualStudio2022Extension)
 
 WiX v3 is available at <https://github.com/wixtoolset/wix3/releases/>. It