Change flagging question

[ljgray]

See discussion here: chime-experiment/Infrastructure#363

[ketiltrout]

Here's a simpler Grafana dashboard which:

• doesn't require tsars to do the channel id -> correlator input translation manually
• doesn't take 90 seconds to load
• makes it eye-bleedingly obvious which channels are bad and good

Downside is, of course, no extra data to try to debug. Certainly the first step should be avoided, the channel ID is already present in the prometheus data (as the chan_id label).

[ljgray]

Changed the info text to link to the simpler grafana page