ESP8266_OpenMQTTGateway_V09.ino.bin got WIFI Password?

Hi All,
Maybe a stuppid question, but i could not find the awser.
some how i need to fill in a wifi password, ware can i find this.

i use a wemo d1 (chinees)

It is here

Redownload the binary please if you downloaded it before wednesday. I ve corrected a parameter storing issue.