deletions | additions       diff --git a/layout.md b/layout.md  index 114a53c..d461ae1 100644  --- a/layout.md  +++ b/layout.md 
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newpage_section_EL1_subsection_Simple__.tex  newpage_section_EL2_subsection_Spectroscopy__.tex  newpage_section_EL3_subsection_Shells__.tex  section_EL4_subsection_Periodicity_Atomic__.tex newpage_section_EL4_subsection_Periodicity__.tex  section_EL5__.tex  section_EL6__.tex  section_EL7__.tex