Add ExDoc to generate docs

issues/mix.exs

@@ -4,10 +4,13 @@ defmodule Issues.MixProject do
   def project do
     [
       app: :issues,
+      escript: escript_config(),
       version: "0.1.0",
       elixir: "~> 1.12",
       start_permanent: Mix.env() == :prod,
-      deps: deps()
+      deps: deps(),
+      name: "Issues",
+      source_url: "https://git.zeitschlag.net/zeitschlag/elixir-book",
     ]
   end
 
@@ -23,8 +26,17 @@ defmodule Issues.MixProject do
     [
       {:httpoison, "~> 1.8.0"},
       {:poison, "~> 5.0"},
+      {:ex_doc, "~> 0.28"},
+      {:earmark, "~> 1.4.18"},
+
       # {:dep_from_hexpm, "~> 0.3.0"},
       # {:dep_from_git, git: "https://github.com/elixir-lang/my_dep.git", tag: "0.1.0"}
     ]
   end
+
+  defp escript_config do
+    [
+      main_module: Issues.CLI
+    ]
+  end
 end