diff --git a/sources/tech/20150211 Install Mumble in Ubuntu an Opensource VoIP Apps.md b/sources/tech/20150211 Install Mumble in Ubuntu an Opensource VoIP Apps.md
index fffe871da6..f49cc07c31 100644
--- a/sources/tech/20150211 Install Mumble in Ubuntu an Opensource VoIP Apps.md	
+++ b/sources/tech/20150211 Install Mumble in Ubuntu an Opensource VoIP Apps.md	
@@ -1,3 +1,5 @@
+translating by martin.
+
 Install Mumble in Ubuntu an Opensource VoIP Apps
 ================================================================================
 Mumble is a free and open source voice over IP (VoIP) application, released under the new BSD license, primarily designed for use by gamers and it's similar to programs such as TeamSpeak and Ventrilo. It uses a server to witch people can connect with a client to talk to each other.
@@ -75,4 +77,4 @@ via: http://linoxide.com/ubuntu-how-to/install-mumble-ubuntu/
 本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创翻译，[Linux中国](http://linux.cn/) 荣誉推出
 
 [a]:http://linoxide.com/author/adriand/
-[1]:http://wiki.mumble.info/wiki/Main_Page
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+[1]:http://wiki.mumble.info/wiki/Main_Page