deletions | additions       diff --git a/layout.md b/layout.md  index 5983c08..192989c 100644  --- a/layout.md  +++ b/layout.md 
...
subsectionAims__To_u.tex  figures/sdss/sdss.png  The_Virgo_cluster_is_so__.tex  subsection_Advanced_problems_Make_a__.tex subsection_Additional_problems_Make_a__.tex  subsection_Hubble_s_Constant_Observations__.tex  tab_hydragalvecolity.tex  Find_the_average_vel.tex