Update git submodules

* Update docs/submodules/doctor from branch 'stable/gambia'
  - Fix links to remove references to submodules

    All references to submodules must be removed for docs to
    work going forward.

    Can be tested once your project has a local tox file

    Change-Id: I3f04ea564b98cc100ea1438f08b1afe3c4c4416d
    Signed-off-by: Aric Gardner <agardner@linuxfoundation.org>
    (cherry picked from commit 8d8fa3f09075f21dcc03738a0bf688ac448aa803)

diff --git a/docs/submodules/doctor b/docs/submodules/doctor
index f81f379..bec932d 160000 (submodule)
--- a/docs/submodules/doctor
+++ b/docs/submodules/doctor
@@ -1 +1 @@
-Subproject commit f81f379cfafb8f18a5ccd7300256e3fdbca1417c
+Subproject commit bec932db65949fb4c8356c590efc85eda6845c00