bad configuration on HA #13

While validating configuration.yaml received below error.

Invalid config for [dohome]: [discovery_time] is an invalid option for [dohome]. Check: dohome->dohome->discovery_time. (See /config/configuration.yaml, line 389).

configuration.yaml is as follow:
dohome:
discovery_ip: "192.168.131.255"
discovery_time: 3

placed below files and folders wihin custom_components folder
dohomebinarysensor
sohomelight
dohomesensor
dohomeswitch
dome.py (file)

Anything missing here?