Switch to side-by-side view

--- a
+++ b/mit-bih-malignant-ventricular-ectopy-database-1.0.0/428.hea
@@ -0,0 +1,3 @@
+428 2 250 525000
+428.dat 212 200 12 0 90 32574 0 ECG
+428.dat 212 200 12 0 -128 31252 0 ECG