Update /write_state call in assets writer docs. (#1087)
Update /write_state call in assets writer docs. (#1087)

* Update /write_state call in assets writer docs.

Follow-up to #966
Closes #1086

* typo

* bump googlebot

cartographer-project/cartographer_ros,googlecartographer/cartographer_ros,wohe/cartographer_ros,cartographer-project/cartographer_ros,wohe/cartographer_ros,googlecartographer/cartographer_ros,wohe/cartographer_ros,googlecartographer/cartographer_ros,damonkohler/cartographer_ros,damonkohler/cartographer_ros,damonkohler/cartographer_ros,cartographer-project/cartographer_ros