Start a list of dated modifications made to the document

This is an OPL requirement. We also satisfy other OPL requirements
by explicitly stating that this is a modified document and that
it is not endorsed by Bryan O'Sullivan.

diff --git a/tour.mdwn b/tour.mdwn
index 1d8435be1b6626b051cd5ed87e901b4afc06243b..b8e475ce0c691b61e33ddce0dbe996b3225a8ccc 100644 (file)
--- a/tour.mdwn
+++ b/tour.mdwn
@@ -3,8 +3,10 @@ A tour of Mercurial: the basics
 
 ### 2.0 Copyright
 
-Distributed revision control with Mercurial
-Bryan O’Sullivan
+This document is a modified version originally known as "Distributed
+revision control with Mercurial" and originally authored by Bryan
+O’Sullivan. The original document was obtained from
+<http://hgbook.red-bean.com/>.
 
 Copyright © 2006, 2007 Bryan O’Sullivan.
 
@@ -12,6 +14,20 @@ This material may be distributed only subject to the terms and
 conditions set forth in version 1.0 of the Open Publication
 License. Please refer to Appendix D for the license text.
 
+As this is a modified version, the name of Bryan O'Sullivan is used
+only to properly credit him with the original text. The appearance of
+his name here explicitly does not assert or imply his endorsement of
+this modified document.
+
+Portions Copyright © 2007 Carl Worth.
+
+Changes made by Carl include the following:
+
+  * 2007-09-27:
+    * Convert from HTML to markdown source syntax
+    * Eliminate all content except Chapter 2 and Appendix D
+    * Eliminate line numbers from examples
+
 ### 2.1  Installing Mercurial on your system
 
 Prebuilt binary packages of Mercurial are available for every popular