Update description and build information

Description adds XRC to the possible outputs. Build information adds C++20
requirement and Windows-only build.

README.md

@@ -1,6 +1,6 @@
 # ![logo](src/art_src/logo64.png) wxUiEditor
 
-This Windows GUI tool is used to create and maintain [wxWidgets](https://docs.wxwidgets.org/trunk/index.html) UI elements (dialogs, menus, etc.), generating C++ output code. Minimal requirement for compiling output files is a C++11 compliant compiler and **wxWidgets** 3.0 (version 3.1 needed for full functionality).
+This WYSIWYG tool is used to create and maintain [wxWidgets](https://docs.wxwidgets.org/trunk/index.html) UI elements (dialogs, menus, etc.), generating either C++ or XRC code. Minimal requirement for compiling C++ output files is a C++11 compliant compiler and **wxWidgets** 3.0 (version 3.2 needed for full functionality).
 
 In addition to creating new projects, the following project types can be imported:
 
@@ -11,13 +11,15 @@ In addition to creating new projects, the following project types can be importe
 - **XRC** (including exports from **DialogBlocks**)
 - **Windows Resource Dialogs** (Click [here](docs/import_winres.md) for more information)
 
+**wxUiEditor** is a 64-bit app that runs natively on Windows 10 or later, and with **Wine** on Unix systems.
+
 ## Status
 
 [![CodeQL](https://github.com/KeyWorksRW/wxUiEditor/workflows/CodeQL/badge.svg)](https://github.com/KeyWorksRW/wxUiEditor/actions?query=workflow:"CodeQL") [![GitHub tag](https://img.shields.io/github/tag/KeyWorksRW/wxUiEditor?include_prereleases=&sort=semver&color=blue)](https://github.com/KeyWorksRW/wxUiEditor/releases/)
 
 ## Building
 
-To build the Windows version of **wxUiEditor**, run the following two commands from the root of the repository:
+You will need a C++20 compliant compiler to build **wxUiEditor**. Currently only Windows builds are supported. To build, run the following two commands from the root of the repository:
 
 ```
     cmake -G "Ninja Multi-Config" . -B build