deletions | additions       diff --git a/layout.md b/layout.md  index bc284f0..4e57627 100644  --- a/layout.md  +++ b/layout.md 
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untitled.tex  begin_displaymath_O__m_g_kappa__.tex begin_equation_O__m_g_kappa__.tex  textbf_The_MacDonald_Equation_by__.tex