Switch to side-by-side view

--- a
+++ b/paf-prediction-challenge-database-1.0.0/t81.hea
@@ -0,0 +1,3 @@
+t81 2 128 230400
+t81.dat 16 200/mV 12 0 -18 10283 0 ECG0
+t81.dat 16 200/mV 12 0 3 2228 0 ECG1