Update config.json

config.json

@@ -15,6 +15,7 @@
     "chunk_size_feed_forward": 0,
     "cross_attention_hidden_size": null,
     "cross_attention_reduce_factor": 4,
+    "encoder_hidden_size": 768,
     "decoder_start_token_id": null,
     "diversity_penalty": 0.0,
     "do_sample": false,