Tightened up the wording around contributing issues and code.

I'll probably make much more dramatic changes to this page
tomorrow.
diff --git a/ContributionReviews.wiki b/ContributionReviews.wiki
index dc49525..2781c60 100644
--- a/ContributionReviews.wiki
+++ b/ContributionReviews.wiki
@@ -4,8 +4,8 @@
 The [MelangeIntro Melange project] has a variety of opportunities for the
 community to contribute, including:
 
- * Creating a http://tinyurl.com/new-issue if a bug is found
- * Fixing bugs that annoy them
+ * [http://code.google.com/p/soc/issues/entry Filing an issue] reporting a defect or requesting a new feature
+ * Contributing a change to Melange's code implementing new behavior
 
 Each of these contributions is subject to review by other members of the
 Melange community.  The guidelines for the review of various types of