docs(CHANGELOG): give credit to @gbuesing

Author: rmehner

CHANGELOG.md

@@ -25,7 +25,7 @@
   * update to update a particular template.
   * delete to delete a particular template.
 * Add rate limit feature to implicitly retry assembly creation when the rate limit is reached.
-* Add `assembly.reload_until_finished!` which calls `reload!` once per second until assembly is finished
+* Add `assembly.reload_until_finished!` which calls `reload!` once per second until assembly is finished (@gbuesing)
 
 ### 1.2.0 / 2015-12-28 ###