Add helpful message to the okification web page output

[cdsontag]

We are constantly struggling with okification. The web page clicks are the first thing we do, so lets fix that msg.

This PR adds an AWS note to it. Another PR fixes where it gives us the wrong path.... oie!

Sister PR:

• ec: https://github.com/spacetelescope/etc-controller/pull/95

After both of these are merged I'll go into glitch and git pull the new code into place.