[openstreetmap/openstreetmap-website] Fix installation instructions for Mac OS X (#2403)

[Andy Allan]

> If there's some way to disable them in the example config (I assume they're not actually used in the tests), would that be better?

[The warnings should already be excluded when running the tests](https://github.com/openstreetmap/openstreetmap-website/blob/master/config/image_optim/test.yml). Did you see the warnings during development?

-- 
You are receiving this because you are subscribed to this thread.
Reply to this email directly or view it on GitHub:
https://github.com/openstreetmap/openstreetmap-website/pull/2403#issuecomment-545482031
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/rails-dev/attachments/20191023/c29edae3/attachment.html>