Make the waterfall public

Change-Id: Ib532f1e649a430e6b7d81a0dd7e5573099284b14
diff --git a/infra/config/global/project.cfg b/infra/config/global/project.cfg
index d1cef54..4ae5cd5 100644
--- a/infra/config/global/project.cfg
+++ b/infra/config/global/project.cfg
@@ -1,4 +1,5 @@
 # For the schema of this file and documentation, see ProjectCfg message in
 # https://luci-config.appspot.com/schemas/projects:project.cfg
 name: "r8"
-access: "group:project-r8-readers"
+access: "group:all" # public
+