deletions | additions       diff --git a/layout.md b/layout.md  index 00c1f97..67c23b7 100644  --- a/layout.md  +++ b/layout.md 
...
untitled.tex  Basic_Verlet_formulation_is_as__.tex  vec_v_t_vec_v__.tex Let_s_show_that_basic__.tex  Now_we_need_to_show__.tex  vec_x_t_Delta_t__1.tex