Add example project.

README.md

@@ -1,3 +1,24 @@
-# template-mit
+# Hello World Qt
 
-Template with MIT license, protected `main` branch, and available `dev` branch.
+A simple Qt application that displays "Hello World!" in a window with a close button.
+
+## Building
+
+```bash
+mkdir build
+cd build
+cmake ..
+make
+```
+
+## Running
+
+```bash
+./hello-world-qt
+```
+
+## Dependencies
+
+- Qt 6
+- CMake
+- C++17 compiler