Add first step of creating an Article

lib/outlook/html_preparations.ex

@@ -0,0 +1,14 @@
+defmodule Outlook.HtmlPreparations do
+  @moduledoc """
+  The HtmlPreparations context.
+  """
+
+  alias Outlook.HtmlPreparations.HtmlPreparation
+
+  def convert_raw_html_input(html) do
+    html
+      |> Floki.parse_fragment!
+      |> HtmlPreparation.floki_to_internal
+      |> HtmlPreparation.set_sibling_with
+  end
+end