Minor changes to footer in ndcode_site and Makefile in pitree

diff --git a/ndcode_site b/ndcode_site
index cbd8a2b..cac64e4 160000 (submodule)
--- a/ndcode_site
+++ b/ndcode_site
@@ -1 +1 @@
-Subproject commit cbd8a2be8ba370422e9eafac5159abbaf0cb1e94
+Subproject commit cac64e4b02d51e150276528b72729e9dcb4d52ba

diff --git a/pitree b/pitree
index 39f2c49..1108fce 160000 (submodule)
--- a/pitree
+++ b/pitree
@@ -1 +1 @@
-Subproject commit 39f2c4975ab27632df59b32559871a2b84c69804
+Subproject commit 1108fceb258825f719ca05a14f0c0e3a9c472d70