"If you're hearing this... then there is still hope. Hope that you can avoid the same mistakes we made. We fought the Reapers, but we failed to stop them. We did everything we could. We built the Crucicble, but it didn't work. We fought as a united Galaxy, but it wasn't enough. I only hope the information in this capsule is enough to help you before it's too late.
My name is Liara T'Soni. Herein lies the recounting of our war with the Reapers."
(Being familiar with the Mass Effect games would really help you in this story.)