Add signal handler example job.

example/signal.nomad

@@ -0,0 +1,21 @@
+job "signal" {
+  datacenters = ["dc1"]
+
+  group "signal-group" {
+    task "signal-task" {
+      driver = "containerd-driver"
+
+      config {
+        image = "docker.io/shm32/signal_handler:1.0"
+      }
+
+      resources {
+        cpu    = 500
+        memory = 256
+        network {
+          mbits = 10
+        }
+      }
+    }
+  }
+}