Added in config from 6f32cc3 showing proper syntax for NotifyContainers in configuration file.

Author: frederickjh

examples/docker-gen.cfg

@@ -8,3 +8,11 @@ notifycmd = "/etc/init.d/nginx reload"
 template = "/etc/logrotate.conf.tmpl"
 dest = "/etc/logrotate.d/docker"
 watch = true
+
+[[config]]
+Template = "/etc/docker-gen/templates/nginx.tmpl"
+Dest = "/etc/nginx/conf.d/default.conf"
+watch = true
+[config.NotifyContainers]
+nginx = 1  # 1 is a signal number to be sent; here SIGINT
+e75a60548dc9 = 1 # a key can be either container name (nginx) or ID