To add/remove yourself to/from this list, login to the website, go to
WP Team Pro → [username] → Quick Edit → Groups,
and check/uncheck "Journal Clubbers".

Please make sure that your "Short Bio" reflects your skills and expertises. Note that you can only use up to 100 characters; you can add more in your "Long Bio" (you edit these bios in your Staff Profile; check this guide to see how).