CI: example to test 2 branches on 2 different repositories

[rdefosse]

This is an example on how to modify the ci-scripts/branchesToTest.txt.

git checkout master
git pull origin master
git checkout -b pr_example
# edit the ci-scripts/branchesToTest.txt file
git add ci-scripts/branchesToTest.txt
git ci -m "my branches to test"
git push origin pr_example

Then create an PR with this branch