Update config.json

config.json

@@ -28,6 +28,9 @@
   "summary_use_proj": true,
   "task_specific_params": {
     "text-generation": {
+      "temperature": 1.0,
+      "top_p": 0.9,
+      "top_k": 50,
       "do_sample": true,
       "max_length": 50000000000000000000000000
     }