Update README.md

Add dev data eval.

README.md

@@ -27,6 +27,20 @@ model-index:
        - name: Test CER
          type: cer
          value: 4.023836120707133
+  - task:
+      name: Automatic Speech Recognition 
+      type: automatic-speech-recognition
+    dataset:
+      name: Robust Speech Event - Dev Data
+      type: speech-recognition-community-v2/dev_data
+      args: de
+    metrics:
+       - name: Test WER
+         type: wer
+         value: 36.76
+       - name: Test CER
+         type: cer
+         value: 14.03
 ---
 
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