rename artifact

Author: samie

demo/pom.xml

@@ -4,8 +4,8 @@
     <modelVersion>4.0.0</modelVersion>
     <!-- Project from https://github.com/samie/nps -->
     <groupId>corg.vaadin.addons.nps</groupId>
-    <artifactId>nps-feedback</artifactId>
-    <name>nps-feedback</name>
+    <artifactId>nps-feedback-demo</artifactId>
+    <name>nps-feedback-demo</name>
     <version>1.0-SNAPSHOT</version>
     <packaging>jar</packaging>