[aisleriot] Update instructions

[Christian Persch <chpe src gnome org>]

commit 8415c372c041694860b8d02df1164cef8963ba86
Author: Christian Persch <chpe gnome org>
Date:   Mon Sep 19 20:24:20 2011 +0200

    Update instructions

 games/README |   11 ++++-------
 1 files changed, 4 insertions(+), 7 deletions(-)
---
diff --git a/games/README b/games/README
index 405cd21..7f84cf0 100644
--- a/games/README
+++ b/games/README
@@ -15,15 +15,12 @@ How to add a new game to Aisleriot
  * Move the documentation foo.xml file into help/C/ and git add it
  * Add foo.xml to DOC_ENTITIES in help/Makefile.am, keeping the list
    sorted alphabetically
- * Edit help/C/aisleriot.xml to add an ENTITY declaration at the top:
+ * Edit help/C/aisleriot.xml to include the new game's documentation
+   by adding
 
-     <!ENTITY foo SYSTEM "foo.xml">
+     <xi:include href="foo.xml" />
 
-   and add this entity to the list of the game entities used:
-
-     &foo;
-
-   Make sure to keep the lists in the file sorted alphabetically.
+   in the list of games. Make sure to keep the list sorted alphabetically!
  * Run the src/get_titles.pl script
  * In help/, run "make check" to make sure the documentation validates
  * Add foo to the list of games in the man page in help/sol.6