Allow creation of refs/meta/config branch

project.config

diff --git a/project.config b/project.config
index 98e5208..257ad51 100644
--- a/project.config
+++ b/project.config
@@ -51,6 +51,8 @@
 	label-Code-Review = -2..+2 group mdb/boringssl-committers
 	submit = group Project Owners
 	submit = group mdb/boringssl-committers
+	create = group Project Owners
+	create = group mdb/boringssl-committers
 [access "refs/tags/*"]
 	createTag = group Project Owners
 	createTag = group mdb/boringssl-committers