- Open a webpage that uses the CA with Firefox
 - Click the lock-icon in the addressbar -> show information -> show certificate
 - the certificate viewer will open
 - click details and choose the certificate of the certificate-chain, you want to import to CentOS
 - click "Export..." and save it as .crt file
 - Copy the .crt file to 
/etc/pki/ca-trust/source/anchorson your CentOS machine - run 
update-ca-trust extract - test it with 
wget https://thewebsite.org 
At some point you’ll find yourself in a situation where you need edit a commit message. That commit might already be pushed or not, be the most recent or burried below 10 other commits, but fear not, git has your back 🙂.
git commit --amendThis will open your $EDITOR and let you change the message. Continue with your usual git push origin master.