Update git submodules

* Update docs/submodules/snaps from branch 'master'
  - Miscellaneous minor stability fixes

    Change-Id: Iad8a7b6358f881d1c2935cc619cfa96f1196a675
    Signed-off-by: spisarski <s.pisarski@cablelabs.com>

diff --git a/docs/submodules/snaps b/docs/submodules/snaps
index d3be4ce..5a81c2a 160000 (submodule)
--- a/docs/submodules/snaps
+++ b/docs/submodules/snaps
@@ -1 +1 @@
-Subproject commit d3be4ce4c62700ec6a84abb160d9f59e7a5c4b0d
+Subproject commit 5a81c2abb920cfe5ea975c37b390838d586a98b1