Switch to side-by-side view

--- a
+++ b/gait-in-neurodegenerative-disease-database-1.0.0/park3.hea
@@ -0,0 +1,3 @@
+park3 2 300 90000
+park3.let 212 1000 12 0 -578 20331 0 left-foot
+park3.rit 212 1000 12 0 739 -11774 0 right-foot