Update file copy_data_for_benchmark.sh

scripts/copy_data_for_benchmark.sh

 mkdir data_orig
+echo "Backup original data"
 cp -a data/* data_orig/
 cd data/01_2d
 
 for i in {0..9}; do
-    echo -ne $i
+    echo -ne "Copy data $i"
     cp BRATS_001_meta.npy BRATS_00${i}_meta.npy
     cp BRATS_001_orig_lbl.npy BRATS_00${i}_orig_lbl.npy
     cp BRATS_001_x.npy BRATS_00${i}_x.npy
@@ -12,7 +13,7 @@ for i in {0..9}; do
 done
 
 for i in {10..99}; do
-    echo -ne $i
+    echo -ne "Copy data $i"
     cp BRATS_001_meta.npy BRATS_0${i}_meta.npy
     cp BRATS_001_orig_lbl.npy BRATS_0${i}_orig_lbl.npy
     cp BRATS_001_x.npy BRATS_0${i}_x.npy
@@ -21,7 +22,7 @@ for i in {10..99}; do
 done
 
 for i in {100..999}; do
-    echo -ne $i
+    echo -ne "Copy data $i"
     cp BRATS_001_meta.npy BRATS_${i}_meta.npy
     cp BRATS_001_orig_lbl.npy BRATS_${i}_orig_lbl.npy
     cp BRATS_001_x.npy BRATS_${i}_x.npy