Update RenderParamVersion.java

 Update comment for rendering latest parameter version

Author: sc-07

parametermanager/src/main/java/parametermanager/RenderParamVersion.java

@@ -25,6 +25,7 @@
 /**
  * This class demonstrates how to render a parameter version using the Parameter Manager SDK for
  * GCP.
+ * The version can be a version ID as a string (e.g. "parameter1") or an alias (e.g. "latest")
  */
 public class RenderParamVersion {