Update git submodules

* Update docs/submodules/moon from branch 'master'
  - Fix a bug when sending authorization requests

    Change-Id: I21b3050bec61a98af1c59974d3d443ca44fc689d

diff --git a/docs/submodules/moon b/docs/submodules/moon
index 07414f0..fd28068 160000 (submodule)
--- a/docs/submodules/moon
+++ b/docs/submodules/moon
@@ -1 +1 @@
-Subproject commit 07414f03ddd0c62a919b387026c1b48225edcfd9
+Subproject commit fd28068afe87b8c5d19b1e467a28b544aad7878d