Fix parens, rephrase, cite FAQ so hotheads won't make ridiculous

claims on #mediawiki.

diff --git a/README b/README
index 32e224a..fda3b88 100644 (file)
--- a/README
+++ b/README
@@ -34,11 +34,13 @@ The MediaWiki software was written by:
  * Niklas Laxström
  * Several others
 
-These developers hold the copyright to this work, and it is licensed under the
-terms of the GNU General Public License, version 2 or later (see
-http://www.fsf.org/licenses/gpl.html). Derivative works, including
-"extensions" which use the MediaWiki code) and later versions of the code
-will also be considered free software licensed under the same terms.
+These developers hold the copyright to this work, and it is licensed
+under the terms of the GNU General Public License, version 2 or later
+(see http://www.fsf.org/licenses/gpl.html). Derivative works and later
+versions of the code must be free software licensed under the same
+terms. This includes "extensions" that use MediaWiki functions or
+variables; see http://www.gnu.org/licenses/gpl-faq.html#GPLAndPlugins
+for details.
 
 The Wikimedia Foundation currently has no legal rights to the software,
 although copyright may be assigned to it by individual contributors at a later