Rename confusion_matrix (2).png to confusion_matrix .png

.gitattributes

@@ -38,3 +38,4 @@ confusion_matrix_normalized[[:space:]](3).png filter=lfs diff=lfs merge=lfs -tex
 F1_curve[[:space:]](1).png filter=lfs diff=lfs merge=lfs -text
 Classes[[:space:]]example.jpg filter=lfs diff=lfs merge=lfs -text
 class_examples.jpg filter=lfs diff=lfs merge=lfs -text
+confusion_matrix[[:space:]].png filter=lfs diff=lfs merge=lfs -text