With the code modification done, lets try to add the source code to our Git repository. To do so, we will go through the following steps:

1. Navigate to the location of the clone of your repository
2. Commit the new file and directory:

git add -A 
git commit -m "Testing master branch protection."

3. Push the commits to the master branch:

git push

The push command should fail with an error message, such as the following:

$ git push
Counting objects: 3, done.
Delta compression using up to 8 threads.
Compressing objects: 100% (2/2), done.
Writing objects: 100% (3/3), 367 bytes | 367.00 KiB/s, done.
Total 3 (delta 0), reused 0 (delta 0)
remote: error: GH006: Protected branch update failed for refs/heads/master.
remote: error: Waiting on code owner review from ldesrosi.
To https://github.com/HyperledgerHandsOn/trade-finance-logistics.git
 ! [remote rejected] master -> master (protected branch hook declined)
error: failed to push some refs to 'https://Github.com/yourID/trading-smart-contract.Git'

If you get a similar message, you know you're on the right path. If the push command succeeds, you should probably go back to the Protecting the master branch section.