Update git submodules

* Update docs/submodules/moon from branch 'master'
  - Merge "Fix a bug in MANIFEST.in"
  - Fix a bug in MANIFEST.in

    Change-Id: I84b526380499b8de7eaab061a7b0aeb427f718e5

diff --git a/docs/submodules/moon b/docs/submodules/moon
index fd28068..7a4dfdd 160000 (submodule)
--- a/docs/submodules/moon
+++ b/docs/submodules/moon
@@ -1 +1 @@
-Subproject commit fd28068afe87b8c5d19b1e467a28b544aad7878d
+Subproject commit 7a4dfdde6314476ae2a1a1c881ff1e3c430f790e