update folder directory

app.py

@@ -9,8 +9,8 @@ from flask import send_file
 app = Flask(__name__)
 app.config['SEND_FILE_MAX_AGE_DEFAULT'] = 0
 app.config["SECRET_KEY"] = '#thaistartsfirst!'
-app.config["IMAGES"] = './images'
-app.config["OUT"] = "./anno"
+app.config["IMAGES"] = 'images'
+app.config["OUT"] = "anno"
 app.config["LABELS"] = []
 app.config["HEAD"] = 0
 app.config["SESSION_PERMANENT"] = False