Add a short intro with links to documentation.
# Vespa sample applications
-This is the home of Vespa Sample applications
+
+This is a set of applications that showcase different Vespa features.
+Please refer to the
+[vespa quick start guide](https://git.corp.yahoo.com/pages/vespa/documentation/documentation/vespa-quick-start.html)
+to get started.
+
+Note: The applications that contain a pom.xml file must be built before being deployed.
+Please refer to
+[developing applications](https://git.corp.yahoo.com/pages/vespa/documentation/documentation/jdisc/developing-applications.html#deploy)
+for more information.
