diff --git a/doc b/doc
index 492df95..ff34f81 160000
--- a/doc
+++ b/doc
@@ -1 +1 @@
-Subproject commit 492df9502bb44a9fb5214c135172222f6392ba24
+Subproject commit ff34f81654217a8801ed243fe6dfcfee5a595a4f