deletions | additions       diff --git a/layout.md b/layout.md  index f59a2aa..952a3e3 100644  --- a/layout.md  +++ b/layout.md 
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p_references_nbsp_br_p__.html  div_a_href_http_www__.html  p_a_href_https_www__.html  p_a_href_http_mathematics__.html