Update git submodules

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

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index ef21117..64549b7 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit ef21117befdbb9b0158d94789fb303d976584a8e
+Subproject commit 64549b75d77bca0ab25f7096540c3e8aeec076b1