Update git submodules

* Update docs/submodules/snaps from branch 'master'
  - Merge "Added support for Heat resource files."
  - Added support for Heat resource files.

    Change-Id: I936c0ef5570b5b417e4649504a817f0ca216812f
    Signed-off-by: spisarski <s.pisarski@cablelabs.com>

diff --git a/docs/submodules/snaps b/docs/submodules/snaps
index 8c3757c..c0942c3 160000 (submodule)
--- a/docs/submodules/snaps
+++ b/docs/submodules/snaps
@@ -1 +1 @@
-Subproject commit 8c3757c7179cffb86d9889c1744c22a2620bc6a7
+Subproject commit c0942c3dd80fa50e15fc81d1b022199200640587