Switch to side-by-side view

--- a
+++ b/paf-prediction-challenge-database-1.0.0/t90.hea
@@ -0,0 +1,3 @@
+t90 2 128 230400
+t90.dat 16 200/mV 12 0 160 18575 0 ECG0
+t90.dat 16 200/mV 12 0 -201 14528 0 ECG1