Corteza Instalation

Can somebody help me install Corteza remotely please
I have Docker Descktop and Docker Compose
I follow the instructions from How to set up the local demo of Corteza - YouTube
and for some reason I get to a point in creating the .env file and trying to commit the File with :wg it tells me that :wg is not a command I am using Git Bash for windows I have Windows 10 Please help where am I going wrong or what did I miss

its W and Q (not W and G).