- fix missing scrape logic for these metrics:
- sync_eth1_connected
- sync_eth1_fallback_configured
- sync_eth1_fallback_connected
- update readme to add more detailed source info
and indicate unsupported metrics.
- fix documentation bug in prometheus help text
for powchain_sync_eth1_connected
Co-authored-by: kasey <kasey@users.noreply.github.com>