deletions | additions       diff --git a/layout.md b/layout.md  index d3197a1..1f0dbc4 100644  --- a/layout.md  +++ b/layout.md 
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Introduction.tex  Phylogenetic networks.tex  figures/phyl_networks/phyl_networks.jpg  Combinatorial methods.tex  figures/phyl_networks/phyl_networks.jpg