Add "multilingual" to the language tag

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

README.md

@@ -1,7 +1,5 @@
 ---
-language:
-- kmr
-- ku
+language: multilingual
 license: apache-2.0
 tags:
 - automatic-speech-recognition
@@ -17,33 +15,33 @@ model-index:
 - name: Akashpb13/xlsr_kurmanji_kurdish
   results:
   - task:
-      name: Automatic Speech Recognition
       type: automatic-speech-recognition
+      name: Automatic Speech Recognition
     dataset:
       name: Common Voice 8
       type: mozilla-foundation/common_voice_8_0
       args: kmr
     metrics:
-    - name: Test WER
-      type: wer
+    - type: wer
       value: 0.33073206986250464
-    - name: Test CER
-      type: cer
+      name: Test WER
+    - type: cer
       value: 0.08035244447163924
+      name: Test CER
   - task:
-      name: Automatic Speech Recognition
       type: automatic-speech-recognition
+      name: Automatic Speech Recognition
     dataset:
       name: Robust Speech Event - Dev Data
       type: speech-recognition-community-v2/dev_data
       args: kmr
     metrics:
-    - name: Test WER
-      type: wer
+    - type: wer
       value: 0.33073206986250464
-    - name: Test CER
-      type: cer
+      name: Test WER
+    - type: cer
       value: 0.08035244447163924
+      name: Test CER
 ---
 
 # Akashpb13/xlsr_kurmanji_kurdish