Update README.md

Add dev data eval results.

README.md

@@ -27,6 +27,20 @@ model-index:
        - name: Test CER
          type: cer
          value: 5.06
+  - 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: 39.79
+       - name: Test CER
+         type: cer
+         value: 15.02
 ---
 
 <!-- This model card has been generated automatically according to the information the Trainer had access to. You
@@ -171,3 +185,8 @@ The following hyperparameters were used during training:
 ```bash
 python ./eval.py --model_id AndrewMcDowell/wav2vec2-xls-r-300m-german-de --dataset mozilla-foundation/common_voice_7_0 --config de --split test --log_outputs
 ```
+
+2. To evaluate on test dev data
+```bash
+python ./eval.py --model_id AndrewMcDowell/wav2vec2-xls-r-300m-german-de --dataset speech-recognition-community-v2/dev_data --config de --split validation --chunk_length_s 5.0 --stride_length_s 1.0
+```