I am using Power Query to access football scores data from an API service in JSON format. The API endpoint address contains my API key and API secret and everything works well. However, instead of having to do a new query with a different endpoint address every time I want to get new information, I wish to have the address dynamic so that the variable part of the API endpoint URL is sourced from information stored in a cell in my worksheet. Can you please show me an example of how this is done so that I can implement it?