It's been a while since I did this but I'll try my best. From what I know, the treaty stated that Germans were responsible for everything in WWI. So, the Germans were forces to rebuild the damage done to France and UK and also fund the reconstruction. They were stripped of the land they have taken over in WWI, additionally some of their own territory as well. They were forced to greatly reduce their numbers of soldiers, as well as restrict certain weapons.
Hope this helps!!