Dead links in help to fix for 2025 fall release

https://data.openei.org/submissions/submissions/commercial-and-residential-hourly-load-profiles-for-all-tmy3-locations-in-the-united-states shows up on the Electric Load help page as well as the download electric load macro.

https://data.openei.org/submissions/153 appears to be the correct replacement.

Also consider automated link checking with Python, time & budget permitting.