Remove extra blank link in change log

Author: Ericson2314

ChangeLog.md

@@ -5,7 +5,6 @@
 * Data.WeakBag.traverse` and `Data.FastWeakBag.traverse` have been deprecated.
   They are replaced with `Data.WeakBag.traverse_` and `Data.FastWeakBag.traverse_`, respectively.
 
-
 * Fixes a bug in `Reflex.Patch.MapWithMove.patchThatSortsMapWith` that was producing invalid `PatchMapWithMove`.
 
 * Add missing `NotReady` instances: