Update git submodules

* Update docs/submodules/pharos from branch 'master'
  - Merge "Update contents in E release"
  - Update contents in E release

    correct some information like: links and descriptions
    delete unuseful information

    JIRA: PHAROS-311

    Change-Id: I1fceaa13fbff540bcd3f314f4653c7cc8c485091
    Signed-off-by: Julien <zhang.jun3g@zte.com.cn>

diff --git a/docs/submodules/pharos b/docs/submodules/pharos
index c795eab..51095fe 160000 (submodule)
--- a/docs/submodules/pharos
+++ b/docs/submodules/pharos
@@ -1 +1 @@
-Subproject commit c795eab899e6a602d7d8009a4b5875019bd25a80
+Subproject commit 51095fef7299f4fd05afbb542a0ce5fb0431ea2b