Update git submodules

* Update docs/submodules/doctor from branch 'master'
  - Remove numbering

    Remove numbering from documents as its showing
    up in all headings in the composite documents.

    Change-Id: I6c0171868f3c70082a8a42e5a33514dfbddab1ba
    Signed-off-by: ShubhamRathi <shubhamiiitbackup@gmail.com>

diff --git a/docs/submodules/doctor b/docs/submodules/doctor
index 4e4c3f6..59fa005 160000 (submodule)
--- a/docs/submodules/doctor
+++ b/docs/submodules/doctor
@@ -1 +1 @@
-Subproject commit 4e4c3f641110246463516c59b99ae7986e14fa7d
+Subproject commit 59fa00582f75a00a8bca8300659463a12023f80f