Change github username from 'preek' to 'munen' in repository

hange_remote_origin.sh

echo "Showing old remote origin"
git remote -v
echo "--------"
NEW_REMOTE=$(git remote -v | head -n1 | awk '{print $2}' | sed -e 's/preek/munen/')
git remote set-url origin $NEW_REMOTE
if (( $? ));
  then echo "failed to set new remote, please adjust manually";
  else echo "succeeded in setting new remote";
fi
echo "--------"
echo "Showing new remote origin"
git remote -v