diff --git a/config.yaml b/config.yaml
index d01d0be..2dafa57 100644
--- a/config.yaml
+++ b/config.yaml
@@ -138,6 +138,7 @@ params:
   twitter: "" # Optional, to display link to twitter account in menu bar
   author: "InterImm"
   editURL: "https://github.com/InterImm/InterImmBook/edit/master/content/"
+  feedback: "https://github.com/InterImm/InterImmBook/issues"
 
 
 outputFormats:
diff --git a/content/cn/history.md b/content/cn/history_dep.md
similarity index 100%
rename from content/cn/history.md
rename to content/cn/history_dep.md
diff --git a/themes/interimm b/themes/interimm
index e821957..84d7f2f 160000
--- a/themes/interimm
+++ b/themes/interimm
@@ -1 +1 @@
-Subproject commit e8219576ce3ca21bcd183477cad72f62d5f9089c
+Subproject commit 84d7f2f6f79487dad2336ff87f80d23557adef61