Added release and contributor badges

Author: githubuser0xFFFF

README.md

@@ -4,15 +4,17 @@
 
 ------------------
 
+[![GitHub release (latest by date)](https://img.shields.io/github/v/release/githubuser0xFFFF/Qt-Advanced-Docking-System?color=%23ef00ef)](https://github.com/githubuser0xFFFF/Qt-Advanced-Docking-System/releases/latest)
 [![Build status](https://github.com/githubuser0xFFFF/Qt-Advanced-Docking-System/workflows/linux-builds/badge.svg)](https://github.com/githubuser0xFFFF/Qt-Advanced-Docking-System/actions?query=workflow%3Alinux-builds)
 [![Build status](https://ci.appveyor.com/api/projects/status/qcfb3cy932jw9mpy/branch/master?svg=true)](https://ci.appveyor.com/project/githubuser0xFFFF/qt-advanced-docking-system/branch/master)
 [![License: LGPL v2.1](https://img.shields.io/badge/License-LGPL%20v2.1-blue.svg)](gnu-lgpl-v2.1.md)
+[![GitHub contributors](https://img.shields.io/github/contributors/githubuser0xFFFF/Qt-Advanced-Docking-System?color=ffdf00)](https://github.com/githubuser0xFFFF/Qt-Advanced-Docking-System/graphs/contributors)
 
 Qt Advanced Docking System lets you create customizable layouts using a full
 featured window docking system similar to what is found in many popular
 integrated development environments (IDEs) such as Visual Studio.
 
-- [What's new](https://github.com/githubuser0xFFFF/Qt-Advanced-Docking-System/releases/latest)
+- [What's new...](https://github.com/githubuser0xFFFF/Qt-Advanced-Docking-System/releases/latest)
 - [Documentation](doc/user-guide.md)
 - Original Repository: https://github.com/githubuser0xFFFF/Qt-Advanced-Docking-System