Update start_encode2_json.php

Author: qencode-dev

examples/start_encode2_json.php

@@ -16,6 +16,7 @@
 $params = '
 {"query": {
   "source": "https://nyc3.s3.qencode.com/qencode/bbb_30s.mp4",
+  "encoder_version": 2,
   "format": [
     {
       "output": "mp4",
@@ -62,4 +63,4 @@
 
 function log_message($msg) {
     echo $msg."\n";
-}
+}