Add a README.md.

README.md

@@ -0,0 +1,20 @@
+# VK Cube
+
+This program renders a simple colored 3d cube using the Vulkan API.
+Only linux with XCB and Wayland is supported.
+
+![Screenshot](assets/app_screenshot.png)
+
+## Building
+
+```bash
+git clone <url>
+cd vk_cube
+# ALPINE: apk add --no-cache vulkan-loader-dev libdrm-dev libpng-dev ninja-build meson
+# UBUNTU: sudo apt-get install libvulkan-dev libdrm-dev libpng-dev ninja-build
+# on ubuntu meson must be installed from pip
+
+# Customize the meson build type here (release, debug, debugoptimized, etc.)
+meson setup builddir --buildtype=release
+meson compile -C builddir
+```