Update app.py

app.py

@@ -18,7 +18,7 @@ def process_video(video_file, youtube_url, language_choice):
         return None
     if video_file != None and youtube_url != None:
         return None
-    else if youtube_url != None:
+    elif youtube_url != None:
         youtube_command = "youtube-dl " + youtube_url
         os.system(youtube_command)