Update README.md

Adding some of the meta-data to the model card

README.md

@@ -1,3 +1,18 @@
+---
+language:
+- en
+tags:
+- summarization
+license: apache-2.0
+datasets:
+- cnn_dailymail
+metrics:
+- rouge
+widget:
+- text: "Bouncing Boulders Point to Quakes on Mars. A preponderance of boulder tracks on the red planet may be evidence of recent seismic activity. If a rock falls on Mars, and no one is there to see it, does it leave a trace? Yes, and it's a beautiful herringbone-like pattern, new research reveals. Scientists have now spotted thousands of tracks on the red planet created by tumbling boulders. Delicate chevron-shaped piles of Martian dust and sand frame the tracks, the team showed, and most fade over the course of a few years."
+  example_title: 
+---
+
 # Try out in the Hosted inference API
 
 In the right panel, you can try to the model (although it only handles a short sequence length).