[#640] Fixed documentation for deadman (#646)
[#640] Fixed documentation for deadman (#646)

Mistake in documentation - should 10s.
bbczeuz/kapacitor,adityacs/kapacitor,influxdata/kapacitor,bbczeuz/kapacitor,influxdata/kapacitor,influxdata/kapacitor,sputnik13/kapacitor,adityacs/kapacitor,titilambert/kapacitor,titilambert/kapacitor,yosiat/kapacitor,adityacs/kapacitor,influxdb/kapacitor,sputnik13/kapacitor,bbczeuz/kapacitor,muxinc/kapacitor,sputnik13/kapacitor,muxinc/kapacitor,influxdb/kapacitor,yosiat/kapacitor,titilambert/kapacitor,influxdb/kapacitor,yosiat/kapacitor,muxinc/kapacitor