Update git submodules

* Update docs/submodules/octopus from branch 'master'
  - Update gsutil documentation

    gsutil must be installed via pip
    irc is a better way to grant access

    Change-Id: Ie2274ddc17814e8c6bf940eb988453de9e2b9fb7
    Signed-off-by: Aric Gardner <agardner@linuxfoundation.org>

diff --git a/docs/submodules/octopus b/docs/submodules/octopus
index 7d6d8b6..3b53019 160000 (submodule)
--- a/docs/submodules/octopus
+++ b/docs/submodules/octopus
@@ -1 +1 @@
-Subproject commit 7d6d8b6f311df1c58b8f7f0dacc33bb3fb8f17c1
+Subproject commit 3b530194ef79082aebb5afc4cf61cedd83dfc031