add MODULE.bazel (#690)

* add MODULE.bazel

BUILD

diff --git a/BUILD b/BUILD
index 0fe1ccb..959335c 100644
--- a/BUILD
+++ b/BUILD
@@ -44,6 +44,7 @@
     ]) + [
         "BUILD",
         "LICENSE",
+        "MODULE.bazel",
     ],
     visibility = ["//distro:__pkg__"],
 )