fix: incorrect and misleading attribute description for person detection samples

Author: morgandu

video/src/main/java/video/DetectPerson.java

@@ -101,7 +101,7 @@ public static void detectPerson(String localFilePath) throws Exception {
           // posture of the person detected.
           TimestampedObject firstTimestampedObject = track.getTimestampedObjects(0);
 
-          // Attributes include unique pieces of clothing, poses, or hair color.
+          // Attributes include unique pieces of clothing, poses (i.e., body landmarks) of the person detected.
           for (DetectedAttribute attribute : firstTimestampedObject.getAttributesList()) {
             System.out.printf(
                 "\tAttribute: %s; Value: %s\n", attribute.getName(), attribute.getValue());

video/src/main/java/video/DetectPersonGcs.java

@@ -93,7 +93,7 @@ public static void detectPersonGcs(String gcsUri) throws Exception {
           // posture of the person detected.
           TimestampedObject firstTimestampedObject = track.getTimestampedObjects(0);
 
-          // Attributes include unique pieces of clothing, poses, or hair color.
+          // Attributes include unique pieces of clothing, poses (i.e., body landmarks) of the person detected.
           for (DetectedAttribute attribute : firstTimestampedObject.getAttributesList()) {
             System.out.printf(
                 "\tAttribute: %s; Value: %s\n", attribute.getName(), attribute.getValue());