Update README.

README.in

@@ -5,6 +5,8 @@
 The `cardant_gui` package provides a JavaFX UI for the
 [cardant](https://www.io7m.com/software/cardant) inventory server.
 
+![com.io7m.cardant_gui](./com.io7m.cardant_gui.main/src/main/meta/screenshot.png?raw=true)
+
 ## Features
 
 * [OSGi](https://www.osgi.org/)-ready.

README.md

@@ -4,7 +4,7 @@ cardant_gui
 [![Maven Central](https://img.shields.io/maven-central/v/com.io7m.cardant_gui/com.io7m.cardant_gui.svg?style=flat-square)](http://search.maven.org/#search%7Cga%7C1%7Cg%3A%22com.io7m.cardant_gui%22)
 [![Maven Central (snapshot)](https://img.shields.io/nexus/s/com.io7m.cardant_gui/com.io7m.cardant_gui?server=https%3A%2F%2Fs01.oss.sonatype.org&style=flat-square)](https://s01.oss.sonatype.org/content/repositories/snapshots/com/io7m/cardant_gui/)
 [![Codecov](https://img.shields.io/codecov/c/github/io7m-com/cardant_gui.svg?style=flat-square)](https://codecov.io/gh/io7m-com/cardant_gui)
-![Java Version](https://img.shields.io/badge/21-java?label=java&color=e6c35c)
+![Java Version](https://img.shields.io/badge/22-java?label=java&color=d4e65c)
 
 ![com.io7m.cardant_gui](./src/site/resources/cardant_gui.jpg?raw=true)
 
@@ -21,6 +21,8 @@ cardant_gui
 The `cardant_gui` package provides a JavaFX UI for the
 [cardant](https://www.io7m.com/software/cardant) inventory server.
 
+![com.io7m.cardant_gui](./com.io7m.cardant_gui.main/src/main/meta/screenshot.png?raw=true)
+
 ## Features
 
 * [OSGi](https://www.osgi.org/)-ready.