Added links for the issues

Author: saimaz

CHANGELOG.md

@@ -4,13 +4,13 @@ CHANGELOG
 v1.x (201x)
 ---
 
-- Fixed nested query in case `bool` with single `must` clause given (#32)
-- Deprecated all filters and filtered query (#50)
-- Added `filter` clause support for `BoolQuery` (#48)
+- Fixed nested query in case `bool` with single `must` clause given [#32](https://github.com/ongr-io/ElasticsearchDSL/issues/32)
+- Deprecated all filters and filtered query [#50](https://github.com/ongr-io/ElasticsearchDSL/issues/50)
+- Added `filter` clause support for `BoolQuery` [#48](https://github.com/ongr-io/ElasticsearchDSL/issues/48)
 
 v1.0.1 (2015-12-16)
 ---
                
-- Fixed `function_score` query options handling (#35)
+- Fixed `function_score` query options handling [#35](https://github.com/ongr-io/ElasticsearchDSL/issues/35)
 - Added Symfony 3 compatibility
-- Added support for `timeout` and `terminate_after` options in Search endpoint (#34)
+- Added support for `timeout` and `terminate_after` options in Search endpoint [#34](https://github.com/ongr-io/ElasticsearchDSL/issues/34)