The published commnand was not working when the user did not have the git client set-up with the public-key. Changed the contributing guide to clone it from https instead. Backport of 28102991172ab931d030412275f926c1b05c688d from master
The published commnand was not working when the user did not have the git client set-up with the public-key. Changed the contributing guide to clone it from https instead. Backport of 28102991172ab931d030412275f926c1b05c688d from master