Update git submodules

* Update docs/submodules/parser from branch 'master'
  - rename all READM.rst to README.md

    Change-Id: I95930de9fefd0897bd0b75d2aeb5a1d731332dad
    Signed-off-by: Julien <zhang.jun3g@zte.com.cn>

diff --git a/docs/submodules/parser b/docs/submodules/parser
index 6a24bbe..00219e7 160000 (submodule)
--- a/docs/submodules/parser
+++ b/docs/submodules/parser
@@ -1 +1 @@
-Subproject commit 6a24bbe353242f78c2a2eb08f522cccea60befc4
+Subproject commit 00219e7e9b24ee2298a7d0d977afdf123a6de88b