Fix docs for hex publish

Publication failed because the "docs" task is unavailable.
You may resolve this by:

  1. Adding {:ex_doc, ">= 0.0.0", only: :dev} to your dependencies in
  your mix.exs and trying again
  2. If ex_doc was already added, make sure you run "mix hex.publish"
  in the same environment as the ex_doc package
  3. Publishing the package without docs by running "mix hex.publish
  package" (not recommended)

We dont have good docs, but that problem is for another time
shrug

1 files changed, 6 insertions, 1 deletions

diff --git a/mix.exs b/mix.exs
index 94fe8a5..e1ee79b 100644
--- a/mix.exs
+++ b/mix.exs
@@ -19,7 +19,12 @@ defmodule PowerDNSex.Mixfile do
   end
 
   defp deps do
-    [{:httpoison, "~> 1.5.0"}, {:poison, "~> 4.0.1"}, {:exvcr, "~> 0.10.3", only: :test}]
+    [
+      {:httpoison, "~> 1.5.0"},
+      {:poison, "~> 4.0.1"},
+      {:exvcr, "~> 0.10.3", only: :test},
+      {:ex_doc, ">= 0.0.0", only: :dev}
+    ]
   end
 
   defp description do