Switch to side-by-side view

--- a
+++ b/gait-in-neurodegenerative-disease-database-1.0.0/park4.hea
@@ -0,0 +1,3 @@
+park4 2 300 90000
+park4.let 212 1000 12 0 406 20387 0 left-foot
+park4.rit 212 1000 12 0 345 -28190 0 right-foot