Update CHANGELOG.md

Author: grctest

CHANGELOG.md

@@ -39,7 +39,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
    (@MagixInTheAir).
  - Change poll min search length from 2 to 1, #595 (@MagixInTheAir).
  - Return the results of "backupwallet" RPC command, #593 (@Foggyx420).
- - Changing the community links https://github.com/gridcoin/Gridcoin-Research/pull/654 (@grctest)
+ - Changing the community links #654 (@grctest)
 
 ## [3.6.1.0] 09-11-2017
 ### Fixed