hammerhead: link to correct device tree

 * Use TeamWin repository instead of omnirom. 

Change-Id: I00f5a813d6a526ba09595cf61c1a6cbd909bbe79
diff --git a/_devices/lgnexus5.markdown b/_devices/lgnexus5.markdown
index 5f5ba08..fdcb3aa 100644
--- a/_devices/lgnexus5.markdown
+++ b/_devices/lgnexus5.markdown
@@ -7,7 +7,7 @@
 supportstatus: Current
 maintainer: Dees_Troy
 oem: LG
-devicetree: https://github.com/omnirom/android_device_lge_hammerhead
+devicetree: https://github.com/TeamWin/android_device_lge_hammerhead
 xdathread: "http://forum.xda-developers.com/google-nexus-5/orig-development/recovery-twrp-2-7-1-0-touch-recovery-t2511507"
 ---