       sent as download. It is automatically inferred from the
       filename extension
     * `:charset` - the charset of the file, such as "utf-8".
-      Defaults to none.
-    * `:offset` - the bytes to offset when reading. Defualts to `0`.
-    * `:length` - the total bytes to read. Defaults to `:all`.
+      Defaults to none
+    * `:offset` - the bytes to offset when reading. Defualts to `0`
+    * `:length` - the total bytes to read. Defaults to `:all`
 
   ## Examples
 

  @doc """
  Stores the layout for rendering if one was not stored yet.

  Raises `Plug.Conn.AlreadySentError` if the conn was already sent.
  """
  @spec put_new_layout(Plug.Conn.t, {atom, binary | atom} | false) :: Plug.Conn.t
  def put_new_layout(%Plug.Conn{state: state} = conn, layout)

              inspect(header) <> " with extensions: " <> inspect(exts)
            end)}

      To accept custom formats, register them under the :mime library
      in your config/config.exs file:

          config :mime, :types, %{
