Add description to card metadata

README.md

@@ -1,6 +1,6 @@
 ---
 title: XNLI
-emoji: 🤗 
+emoji: 🤗
 colorFrom: blue
 colorTo: red
 sdk: gradio
@@ -8,10 +8,22 @@ sdk_version: 3.0.2
 app_file: app.py
 pinned: false
 tags:
-- evaluate
-- metric
----
+  - evaluate
+  - metric
+description: >-
+  XNLI is a subset of a few thousand examples from MNLI which has been
+  translated
+
+  into a 14 different languages (some low-ish resource). As with MNLI, the goal
+  is
+
+  to predict textual entailment (does sentence A imply/contradict/neither
+  sentence
 
+  B) and is a classification task (given two sentences, predict one of three
+
+  labels).
+---
 # Metric Card for XNLI
 
 ## Metric description