Add 'watchdog'

watchdog

@@ -0,0 +1,9 @@
+Restarts unhealthy containers
+
+docker run \
+    -d \
+    --name watchdog \
+    --restart=always \
+    -e WATCHDOG_CONTAINER_LABEL=all \
+    -v /var/run/docker.sock:/var/run/docker.sock \
+    buanet/watchdog:latest