Add note on sender delaying.

docker/entrypoint.sh

@@ -65,7 +65,8 @@ dur=$(echo "$(date +%s.%N) - $start" | bc);
 printf "Reachable after %.6f seconds\n" $dur
 
 if [[ "$command" == "sender" || "$command" == "time-sender" ]]; then
-    sleep 2
+    echo "Delaying $command"
+    sleep 10
 fi
 
 start=$(date +%s.%N);