added print statement before each tfrecords section

inspect-tf-records.sh

@@ -2,6 +2,7 @@
 
 source prepare-shell.sh
 
+echo 'Train:'
 python -m sciencebeam_gym.tools.inspect_tfrecords \
   --records_paths "${TRAIN_PREPROC_PATH}/*tfrecord*" \
   --inspect_key "input_uri" \
@@ -9,6 +10,7 @@ python -m sciencebeam_gym.tools.inspect_tfrecords \
   --extract_image "input_image" \
   --extract_image "annotation_image"
 
+echo -e "\nValidation:"
 python -m sciencebeam_gym.tools.inspect_tfrecords \
   --records_paths "${EVAL_PREPROC_PATH}/*tfrecord*" \
   --inspect_key "input_uri" \
@@ -17,6 +19,7 @@ python -m sciencebeam_gym.tools.inspect_tfrecords \
   --extract_image "annotation_image"
 
 if [ ! -z "$QUALITATIVE_PREPROC_PATH" ]; then
+  echo -e "\nQuantitative:"
   python -m sciencebeam_gym.tools.inspect_tfrecords \
     --records_paths "${QUALITATIVE_PREPROC_PATH}/*tfrecord*" \
     --inspect_key "input_uri" \