Update git submodules

* Update docs/submodules/moon from branch 'master'
  - Merge "Add information about which API attribute is important or not. In other terms, which attribute must be tested or not."
  - Add information about which API attribute is important or not.
    In other terms, which attribute must be tested or not.

    Change-Id: I81d4270a41353aa1ec958aff74ee741e9d172fbc

diff --git a/docs/submodules/moon b/docs/submodules/moon
index 0f97a91..4fca7b2 160000 (submodule)
--- a/docs/submodules/moon
+++ b/docs/submodules/moon
@@ -1 +1 @@
-Subproject commit 0f97a918f583edfe1c2e92ce4abadd7aef3b1c4f
+Subproject commit 4fca7b2db378fa5a97a2bd03ccdc934f9e57e150