Fix: "git submodule update --init --recursive" ERROR: fatal: "unable to connect to github.com"

#1

When installing Ardupilot on https://dojofordrones.com/topic/ardupilot-installation-part-1/ @ 1.45min

~ git submodule update --init --recursive
fatal: unable to connect to github.com

SOLUTION:

~ git config --global url.“https://”.insteadOf git://
~ git submodule update --init --recursive

Submodule update error
Submodule Update
How to Incorporate https:// with "git submodule update --init --recursive"