 
       iex> GithubTrendEx.trending_url("elixir")
       "https://github.com/trending/elixir?since=daily"
+
+      iex> GithubTrendEx.trending_url("elixir", "weekly")
+      "https://github.com/trending/elixir?since=weekly"
   """
   @spec trending_url(bitstring, bitstring) :: bitstring
   def trending_url(lang \\ "", since \\ "daily") do

  end
  def get_text_from(text), do: text |> String.strip
end

  @doc """
  Return Map `%{name: "a name of the trend", url: "a url to github of the trend", description: "description of the trend"}`
  """
  @spec list(bitstring) :: [%Repo{}]
  def list(html) do
    elements = Floki.find(html, "ol.repo-list > li")
    Enum.map(elements, fn(el) ->
