diff --git a/README b/README
index 9a755c2..09c7f91 100644
--- a/README
+++ b/README
@@ -12,11 +12,14 @@ See http://creativecommons.org/licenses/LGPL/2.1/ or the included file, lgpl-2.1
 You can import these files in your scripts with "use <MCAD/*.scad>", but some
 files include useful constants which will be available with "include <MCAD/*.scad>",
 which should be safe to use on all included files (ie. no top level code should
-create geometry).
+create geometry). (There is a bug/feature that prevents including constants from
+files that "include" other files - see the openscad mailing list archives for more
+details. Since the maintainers aren't very responsive, may have to work around this
+somehow)
 
 If you host your project in git, you can do "git submodule add URL PATH" in your
 repo to import this library as a git submodule for easy usage. Then you need to do
-a "git submodule update --init". When you want to update the submodule,
+a "git submodule update --init" after cloning. When you want to update the submodule,
 do "cd PATH; git checkout master; git pull". See "git help submodule"" for more info.
 
 Currently Provided Tools: