def deps do
  [
    {:athena, "~> 0.1.0"}
  ]
end

iex> Athena.ansi_to_html("\e[4mfoo\e[0m")
"<span style='text-decoration: underline;'>foo</span>"

iex> Athena.ansi_codes()
%{
  "0m" => "</span>",
  "1m" => "<span style='font-weight: bold;'>",
  "4m" => "<span style='text-decoration: underline;'>",
  "30m" => "<span style='color: black;'>",
  "31m" => "<span style='color: red;'>",
  ...
}