Merge #43: Mention DNSSEC Trigger.

2578491 Mention DNSSEC Trigger. (Hugo Landau)

Pull request description:

  Fixes #40.

Tree-SHA512: 38fe7c2d90232299ba92d2e338e7516cf24b57c0ef9bbef5aff82fcc70908dfcc1f7dbf70a5d5a1f207b6f9b8eecb84bb171108ea5d8ed3c7e34ad367ca869f1

README.md

@@ -136,10 +136,12 @@ Linux:
     a `.bit` domain. If you want to use DNSSEC, generate keys as shown above
     and configure ncdns appropriately.
 
-  - Install and setup the Unbound recursive resolver on your system. Set it up
-    to start at boot. See above for configuration suggestions. If you wish to
-    use DNSSEC, add the ncdns DNSKEY to Unbound as a trust anchor as shown
-    above. (Make sure Unbound listens only on localhost.)
+  - Install and setup the Unbound recursive resolver on your system. On most
+    systems, the recommended way to install Unbound is to install DNSSEC
+    Trigger, which installs and configures Unbound automatically.
+
+    If you wish to use DNSSEC, add the ncdns DNSKEY to Unbound as a trust
+    anchor as shown above. See above for configuration suggestions.
 
   - Edit `/etc/resolv.conf` to point to the Unbound resolver at 127.0.0.1.
     (If this file is generated automatically via DHCP or similar, you may