deletions | additions       diff --git a/layout.md b/layout.md  index 62672f9..2c9777a 100644  --- a/layout.md  +++ b/layout.md 
...
untitled.tex  Introduction__.md  Pointer_to_strided_memory_Fortran__.md Homogeneous_regular_Pointer_to_strided__.md  Labeled_arrays_Python_X_Ray__.md  Columnar_containers_Columnar_containers_are__.md  Graph_structures_A_simple_graph__.md