Add multilingual to the language tag

Hi! A PR to add multilingual to the language tag to improve the referencing.

README.md

@@ -1,4 +1,8 @@
 ---
+language:
+- en
+- is
+- multilingual
 license: agpl-3.0
 tags:
 - generated_from_trainer
@@ -9,32 +13,29 @@ metrics:
 - recall
 - f1
 - accuracy
-language: 
-- en
-- is
 model-index:
 - name: XLMR-ENIS-finetuned-ner
   results:
   - task:
-      name: Token Classification
       type: token-classification
+      name: Token Classification
     dataset:
       name: conll2003
       type: conll2003
       args: conll2003
     metrics:
-    - name: Precision
-      type: precision
+    - type: precision
       value: 0.9398313331170938
-    - name: Recall
-      type: recall
+      name: Precision
+    - type: recall
       value: 0.9517943664285128
-    - name: F1
-      type: f1
+      name: Recall
+    - type: f1
       value: 0.9457750214207026
-    - name: Accuracy
-      type: accuracy
+      name: F1
+    - type: accuracy
       value: 0.9853686150987764
+      name: Accuracy
 ---
 
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