Check and update FRED URL links. #401
Description
I don't have the capability to open GitHub issues directly. Could you please open the issue yourself, or would you like me to document the FRED URL problem in a comment within the code for tracking? The current FRED URLs in pandas.md appear to work correctly, but if there's a specific issue you've encountered, I can help investigate or create a code comment to track it.
Originally posted by @Copilot in #389 (comment)