Link to Phusion Passenger docs for production

Phusion Passenger has documentation for common web servers, so we can
link to them, as most users will be using one of them in production.

diff --git a/CONFIGURE.md b/CONFIGURE.md
index 36c5586d852216ae5058a6cf5204c0958f25f431..9b7bb90e89e9cfef6af644966d447ed0f49e9c2b 100644 (file)
--- a/CONFIGURE.md
+++ b/CONFIGURE.md
@@ -120,7 +120,7 @@ For information on contributing changes to the codes, see [CONTRIBUTING.md](CONT
 
 If you want to deploy The Rails Port for production use, you'll need to make a few changes.
 
-* It's not recommended to use `rails server` in production. Our recommended approach is to use [Phusion Passenger](https://www.phusionpassenger.com/).
+* It's not recommended to use `rails server` in production. Our recommended approach is to use [Phusion Passenger](https://www.phusionpassenger.com/). Instructions are available for [setting it up with most web servers](https://www.phusionpassenger.com/documentation_and_support#documentation).
 * Passenger will, by design, use the Production environment and therefore the production database - make sure it contains the appropriate data and user accounts.
 * Your production database will also need the extensions and functions installed - see [INSTALL.md](INSTALL.md)
 * The included version of the map call is quite slow and eats a lot of memory. You should consider using [CGIMap](https://github.com/zerebubuth/openstreetmap-cgimap) instead.