Update app.py

app.py

@@ -4,7 +4,7 @@ import os
 from werkzeug.utils import secure_filename
 
 app = Flask(__name__)
-app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///coursels.db'
+app.config['SQLALCHEMY_DATABASE_URI'] = "postgresql://neondb_owner:npg_vz5FLSXfj2sp@ep-late-block-adp1o88t-pooler.c-2.us-east-1.aws.neon.tech/neondb?sslmode=require&channel_binding=require"
 app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
 UPLOAD_FOLDER = 'static/uploads'
 app.config['UPLOAD_FOLDER'] = UPLOAD_FOLDER