Update mirror list

Change-Id: Ibbb385dc17c67dc865cf06cc75c1469a468e7696
diff --git a/_data/mirrors.yml b/_data/mirrors.yml
index 4098f95..6056438 100644
--- a/_data/mirrors.yml
+++ b/_data/mirrors.yml
@@ -1,5 +1,8 @@
-- description: Techerrata in Germany
+- description: Primary (Recommended)
+  baserul: http://dl.twrp.me/
+
+- description: Techerrata in Germany (may be out of date)
   baseurl: http://techerrata.com/browse/twrp2/
 
-- description: Goo.im
+- description: Goo.im (may be out of date)
   baseurl: https://goo.im/devs/OpenRecovery/