Prepare to join servers

lib/birdy_chat/peer_client.ex

@@ -0,0 +1,9 @@
+defmodule BirdyChat.PeerClient do
+  use Slipstream, restart: :temporary
+
+  def start_link(args) do
+    name = args[:peer_name]
+    name = {:via, BirdyChat.PeerRegistry, {:peers, name}}
+    Slipstream.start_link(__MODULE__, args, name: name)
+  end
+end