If you wish to edit your email settings (and notifications) you'll first need to login to your profile.
1. Click on the menu icon on the upper right corner of the page (to the right of your picture).
2. Click on the 'Settings' section, then go to 'Email Settings'.
3. Uncheck the boxes for the notifications you prefer not to receive, and check boxes for the ones you do (if they are not checked). Be sure to click 'Update Settings' at the bottom of the page when done.