Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 20caa6ec8c987786e633a532e841e32d2de718bb
  - Merge "Added new flow for creating 5G slice service instance groovy."
  - Added new flow for creating 5G slice service instance groovy.

    Added new flow for creating 5G slice service instaance groovy.

    Issue-ID: SO-2368

    Signed-off-by: Isaac Manuel Raj <isaac.manuelraj@huawei.com>
    Change-Id: I6c7d8d85bb597732d372458d408cbf5a34cabcc7

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index 38ee4a4..20caa6e 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit 38ee4a439a5f4fcbb51b71daa262cbb082614739
+Subproject commit 20caa6ec8c987786e633a532e841e32d2de718bb