DebugPoint published a tutorial about enabling the RPM Fusion repository in Fedora, CentOS, and RHEL.
How to Enable RPM Fusion Repo in Fedora, CentOS, RHEL
This guide explains the steps to enable third-party software repository RPM Fusion in Fedora Linux Distribution. The RPM Fusion software repo is a community-maintained software repo that provides additional packages for Fedora Linux which is not distributed by the official Fedora team such as DVD playback, media playback, software from GNOME and KDE work, etc....
