Use ikiwiki link

wiki/src/contribute/reports/SponsorS/2015/2015_11.mdwn

@@ -229,7 +229,7 @@ problems:
 
 # E. Release management
 
-- Tails 1.7 was released on 2015-11-03 [1]:
+- [[Tails 1.7|news/version_1.7]] was released on 2015-11-03:
 
   * Add an offline mode to disable all networking.
   * Add Icedove as a technology preview.
@@ -241,5 +241,3 @@ problems:
   * Prevent symlink attack on ~/.xsession-errors via tails-debugging-info.
   * Force synchronization of data on the USB stick at the end of automatic upgrades.
   * Make the "I2P is ready" notification more reliable.
-
-  [1] <https://tails.boum.org/news/version_1.7/>