Switch to side-by-side view

--- a
+++ b/paf-prediction-challenge-database-1.0.0/p28.hea
@@ -0,0 +1,3 @@
+p28 2 128 230400
+p28.dat 16 200/mV 12 0 10 30234 0 ECG0
+p28.dat 16 200/mV 12 0 -8 -11775 0 ECG1