Notify upspin-reviews@googlesource.com of changes

project.config

diff --git a/project.config b/project.config
index d264cdd..04c967a 100644
--- a/project.config
+++ b/project.config
@@ -56,5 +56,8 @@
 [notify "team"]
 	email = upspin@google.com
 	filter = -message:do-not-review
+[notify "public"]
+	email = upspin-reviews@googlegroups.com
+	filter = -message:do-not-review
 [access "refs/for/*"]
 	addPatchSet = group Registered Users