I just found out by accident that you can easily manage to achieve this:
- fork the project (if you haven‘t done it yet)
- create a pull request for yourself from the selected branch, e.g. from master of head project to master of your fork:
- base fork: original/project ; base: master ; head fork: your/project ; compare: master
- do NOT merge this pull request
- under the Email section of your Notifications settings enable:
- Comments on Issues and Pull Requests
- Pull Request reviews
- Pull Request pushes
That‘s it. You will receive email notifications about every commit on master branch.