Update git submodules

* Update docs/submodules/barometer from branch 'master'
  - docker: add instructions to user guide

    * cleaned up whitespace issues

    Change-Id: Ia4ac74343f71dbe85fffb3d1c604c227958fb380
    Signed-off-by: Maryam Tahhan <maryam.tahhan@intel.com>

diff --git a/docs/submodules/barometer b/docs/submodules/barometer
index dde33f9..558fb21 160000 (submodule)
--- a/docs/submodules/barometer
+++ b/docs/submodules/barometer
@@ -1 +1 @@
-Subproject commit dde33f975509dc47fe580a59f5ce3b615be23116
+Subproject commit 558fb2137b84a11ac62601b5be22170692be365a