Added config example file

config.py.example

+SQLALCHEMY_DATABASE_URI = "sqlite:///example.db" # SQLAlchemy connection data
+SECRET_KEY = "abcdef"                            # 
+DEBUG = False                                    # Debug Mode
+UPDATE_INDEX_INTERVAL = 1                        # Time in seconds between requests
+UPDATE_SHOW_INTERVAL = 1                         # 
+UPDATE_TIME_INTERVAL = 10                        #