diff -Nurd -X.diff_ignore freeciv/doc/README.ruleset_experimental freeciv/doc/README.ruleset_experimental
--- freeciv/doc/README.ruleset_experimental	2013-02-02 01:25:18.999585356 +0200
+++ freeciv/doc/README.ruleset_experimental	2013-02-02 07:53:07.679074836 +0200
@@ -84,6 +84,13 @@
   hidden by default in the Gtk client, so when the game starts you can
   only see a few techs; you can see the rest with the "Show all" button.
 
+- There's only two disaster types; Earthquake and Fire, and they both
+  can destroy a building from a city.
+
+- Road movement cost is 2/3 movement points, Railroad cost 1/3, and
+  infinite movement is provided by Maglev. You can upgrade Railroads to
+  Maglevs once you know Superconductor.
+
 
 2. Use the new ruleset
    -------------------