Switch to side-by-side view

--- a
+++ b/paf-prediction-challenge-database-1.0.0/n09.hea
@@ -0,0 +1,3 @@
+n09 2 128 230400
+n09.dat 16 200/mV 12 0 5 -22905 0 ECG0
+n09.dat 16 200/mV 12 0 -2 22646 0 ECG1