demos --> examples

examples/ is pretty standard whereas demos/ isn't. So I just refactored that.

Signed-off-by: Ahmet Alp Balkan <ahmetb@google.com>

examples/helloWorld/kustomization.yaml

@@ -0,0 +1,9 @@
+# Example configuration for the webserver
+# at https://github.com/monopole/hello
+commonLabels:
+  app: hello
+
+resources:
+- deployment.yaml
+- configMap.yaml
+- service.yaml