[PIO-185] livedoc Gitbox Link Update

diff --git a/docs/manual/source/community/contribute-documentation.html.md b/docs/manual/source/community/contribute-documentation.html.md
index 1645066..e4b1d55 100644
--- a/docs/manual/source/community/contribute-documentation.html.md
+++ b/docs/manual/source/community/contribute-documentation.html.md
@@ -196,7 +196,7 @@
 
 ```
 $ git remote -v
-$ git remote add apache https://git-wip-us.apache.org/repos/asf/predictionio.git
+$ git remote add apache https://gitbox.apache.org/repos/asf/predictionio.git
 ```
 
 Then, push the `livedoc` branch. (It will be published and synced with the public GitHub mirror):