add test_balanced_32k to readme

README.md

@@ -87,6 +87,35 @@ dataset_info:
       dtype: string
     - name: mixing_factor
       dtype: float32
+- config_name: test_balanced_32k
+  features:
+  - name: audio
+    dtype:
+      audio:
+        sampling_rate: 22050
+        decode: false
+  - name: librivox_sources
+    list:
+    - name: reader_id
+      dtype: int32
+    - name: section_id
+      dtype: int32
+    - name: book_id
+      dtype: int32
+    - name: offset_seconds
+      dtype: float32
+    - name: speed_factor
+      dtype: float32
+    - name: mixing_factor
+      dtype: float32
+  - name: audioset_sources
+    list:
+    - name: tar
+      dtype: string
+    - name: filename
+      dtype: string
+    - name: mixing_factor
+      dtype: float32
 - config_name: test_balanced_64k
   features:
   - name: audio
@@ -133,6 +162,10 @@ configs:
   data_files:
   - split: train
     path: data/test_balanced_64k/train-*
+- config_name: test_balanced_32k
+  data_files:
+  - split: train
+    path: data/test_balanced_32k/train-*
 license: apache-2.0
 task_categories:
 - audio-to-audio