Add multilingual to the language tag

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

README.md

@@ -3,6 +3,7 @@ language:
 - sv
 - 'no'
 - da
+- multilingual
 license: apache-2.0
 tags:
 - whisper-event
@@ -28,33 +29,15 @@ model-index:
       config: sv-SE
       split: test
     metrics:
-    - name: Wer
-      type: wer
+    - type: wer
       value: 11.31
-  - task:
-      type: automatic-speech-recognition
-      name: Automatic Speech Recognition
-    dataset:
-      name: mozilla-foundation/common_voice_11_0
-      type: mozilla-foundation/common_voice_11_0
-      config: da
-      split: test
-    metrics:
-    - name: Wer
-      type: wer
+      name: Wer
+    - type: wer
       value: 14.86
-  - task:
-      type: automatic-speech-recognition
-      name: Automatic Speech Recognition
-    dataset:
-      name: mozilla-foundation/common_voice_11_0
-      type: mozilla-foundation/common_voice_11_0
-      config: nn-NO
-      split: test
-    metrics:
-    - name: Wer
-      type: wer
-      value: 37.02      
+      name: Wer
+    - type: wer
+      value: 37.02
+      name: Wer
 ---
 
 # Whisper Medium Nordic