Update git submodules

[doc.git] / docs / submodules / so.git

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index e6d05b9..31e4876 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit e6d05b9359582d2a8bddfeb73527d134586410b7
+Subproject commit 31e4876968f144b875e21f4499701ba2f16dc94f