Amend link to river level visualisation.
Amend link to river level visualisation.

The Heroku app is down. Link to blog post until we decide whether to fix  it.

alphagov/spotlight,tijmenb/spotlight,keithiopia/spotlight,tijmenb/spotlight,keithiopia/spotlight,alphagov/spotlight,alphagov/spotlight,tijmenb/spotlight,keithiopia/spotlight