Add evaluation results on the autoevaluate--squad-sample config and test split of autoevaluate/squad-sample

Beep boop, I am a bot from Hugging Face's automatic model evaluator 👋!\
Your model has been evaluated on the autoevaluate--squad-sample config and test split of the [autoevaluate/squad-sample](https://huggingface.co/datasets/autoevaluate/squad-sample) dataset by

@lewtun
, using the predictions stored [here](https://huggingface.co/datasets/autoevaluate/autoeval-staging-eval-autoevaluate__squad-sample-autoevaluate__squad-sample-778ba0-17436361).\
Accept this pull request to see the results displayed on the [Hub leaderboard](https://huggingface.co/spaces/autoevaluate/leaderboards?dataset=autoevaluate/squad-sample).\
Evaluate your model on more datasets [here](https://huggingface.co/spaces/autoevaluate/model-evaluator?dataset=autoevaluate/squad-sample).

README.md

@@ -1,8 +1,35 @@
 ---
 language: en
+license: cc-by-4.0
 datasets:
 - squad_v2
-license: cc-by-4.0
+model-index:
+- name: autoevaluate/roberta-base-squad2
+  results:
+  - task:
+      type: question-answering
+      name: Question Answering
+    dataset:
+      name: autoevaluate/squad-sample
+      type: autoevaluate/squad-sample
+      config: autoevaluate--squad-sample
+      split: test
+    metrics:
+    - type: f1
+      value: 92.2701
+      name: F1
+      verified: true
+      verifyToken: eyJhbGciOiJFZERTQSIsInR5cCI6IkpXVCJ9.eyJoYXNoIjoiODVmNWIwMGQ3NjM1YjFkYThhZDEyYjI3YWRmMGY0MzkzMGU1NTY0NTIwZDNmOTM1MjJjNjRkOGFkZTQ0NzJhNSIsInZlcnNpb24iOjF9.TeI7h00Z7521NHcgxbnqEc_Mw2Gs9NbgwLSK5wu3rJUDkzIcoVO_PoTF7aW90Ti_4SFrUni2EayXRC4-NUbkAQ
+    - type: exact_match
+      value: 88.0
+      name: Exact Match
+      verified: true
+      verifyToken: eyJhbGciOiJFZERTQSIsInR5cCI6IkpXVCJ9.eyJoYXNoIjoiZDRiZDM5YTRmZmYyMjAwZTVjNzdlZmVhNzM3MDViYTVkODY0NGIxN2ExZTc0Y2M0ODNiNWMzNDAyZTgwZGJhYSIsInZlcnNpb24iOjF9.DX4wkgZRw71NqdkgxzgE2umuoCWDsOkYAFEt6dCYCaLBZ3Qs5jxSY_jr7r921cfqiJ9C6xaWzXaaje4I5Qf5Cg
+    - type: loss
+      value: 1.0867670774459839
+      name: loss
+      verified: true
+      verifyToken: eyJhbGciOiJFZERTQSIsInR5cCI6IkpXVCJ9.eyJoYXNoIjoiNDkwYzBkNmI4MGFiNDlhOTE4NWI3OTM3NDQ1NGM2N2Y3NzJiZTg5YTJlMzQ5NzlkNDk3ZmRkOGRlMzg0ZTY2ZCIsInZlcnNpb24iOjF9.12hHqilvpe8JaQyqvuq7D5hZ3XXysWdExiDgFTMTXL4CIX5YJYANJLEoWAo2yRFaTm4EVJO3Pmp4P6GF8zlXCw
 ---
 
 # roberta-base for QA