Update README.md

This is a character-based sentiment classifier based on google/canine-s.

The label scheme is:
*Positive
*Neutral
*Negative

Test scores on the dataset:
Accuracy: 0.82174688057041, Precision: 0.8252264610535646, Recall: 0.8259560973518955, F1 Macro: 0.820257587240921, F1 Micro: 0.82174688057041

README.md

@@ -1,3 +1,10 @@
----
-license: cc-by-4.0
----
+---
+license: cc-by-4.0
+language:
+- en
+metrics:
+- f1
+base_model:
+- google/canine-s
+pipeline_tag: text-classification
+---