Add ex_doc

mix.exs

@@ -45,6 +45,7 @@ defmodule CloudVision.Mixfile do
   # Type "mix help deps" for more examples and options
   defp deps do
     [
+      {:ex_doc, ">= 0.0.0", only: :dev},
       {:httpoison, "~> 0.9.0"},
       {:goth, "~> 0.2.0"},
       {:poison, "~> 2.0"}

mix.lock

@@ -1,4 +1,6 @@
 %{"certifi": {:hex, :certifi, "0.4.0", "a7966efb868b179023618d29a407548f70c52466bf1849b9e8ebd0e34b7ea11f", [:rebar3], []},
+  "earmark": {:hex, :earmark, "1.0.1", "2c2cd903bfdc3de3f189bd9a8d4569a075b88a8981ded9a0d95672f6e2b63141", [:mix], []},
+  "ex_doc": {:hex, :ex_doc, "0.13.0", "aa2f8fe4c6136a2f7cfc0a7e06805f82530e91df00e2bff4b4362002b43ada65", [:mix], [{:earmark, "~> 1.0", [hex: :earmark, optional: false]}]},
   "goth": {:hex, :goth, "0.2.0", "c5b832b91fc514a99a582535d0e8dc900900578e467e813c639a45c6454e1c38", [:mix], [{:httpoison, "~> 0.9.0", [hex: :httpoison, optional: false]}, {:json_web_token, "~> 0.2.5", [hex: :json_web_token, optional: false]}, {:poison, "~> 2.1", [hex: :poison, optional: false]}]},
   "hackney": {:hex, :hackney, "1.6.1", "ddd22d42db2b50e6a155439c8811b8f6df61a4395de10509714ad2751c6da817", [:rebar3], [{:certifi, "0.4.0", [hex: :certifi, optional: false]}, {:idna, "1.2.0", [hex: :idna, optional: false]}, {:metrics, "1.0.1", [hex: :metrics, optional: false]}, {:mimerl, "1.0.2", [hex: :mimerl, optional: false]}, {:ssl_verify_fun, "1.1.0", [hex: :ssl_verify_fun, optional: false]}]},
   "httpoison": {:hex, :httpoison, "0.9.0", "68187a2daddfabbe7ca8f7d75ef227f89f0e1507f7eecb67e4536b3c516faddb", [:mix], [{:hackney, "~> 1.6.0", [hex: :hackney, optional: false]}]},