deletions | additions       diff --git a/layout.md b/layout.md  index 394e4c2..a7c7fe0 100644  --- a/layout.md  +++ b/layout.md 
...
Topological_Insulator_has_drawn_a__.tex textbf_Introduction_Topological_Insulator_has__.tex  figures/QHE1/QHE1.png  The_integer_QHE_has_a__.tex  begin_equation_sigma__xy_v__.tex