Update transcription processing state: next_index=9, count=0

processing_state_transcriptions.json

@@ -1,5 +1,5 @@
 {
-  "next_download_index": 8,
+  "next_download_index": 9,
   "file_states": {
     " 3. What Is Concept Art.wav": "processed",
     "0.1 Course Introduction.wav": "processed",
@@ -8,7 +8,8 @@
     "0.2 Tutor Presentation.wav": "processed",
     "0.3 Character Creation Tips.wav": "processed",
     "0.4 About Unreal Engine.wav": "processed",
-    "0.5 About Blender.wav": "processed"
+    "0.5 About Blender.wav": "processed",
+    "00 - Preview.wav": "processed"
   },
   "transcription_count": 0
 }