README.md

Epoch	Training Loss	Validation Loss	Rouge1	Rouge2	Rougel	Rougelsum
1	0.182300	0.227213	0.953785	0.907361	0.953785	0.953890
2	0.154800	0.125345	0.948243	0.896069	0.948139	0.948243
3	0.135800	0.115165	0.953785	0.907361	0.953785	0.953890