docs(changelog): adds PR contributors name to release notes

CHANGELOG.md

@@ -2,14 +2,14 @@
 
 ### Enhancements
 * **Postgres**: Add support for Certs for Postgres database [#6655](https://github.com/grafana/grafana/issues/6655)
-* **Victorops**: Add VictorOps notification integration [#6411](https://github.com/grafana/grafana/issues/6411)
-* **Opsgenie**: Add OpsGenie notification integratiion (by [@kylemcc](https://github.com/kylemcc)) [#6687](https://github.com/grafana/grafana/issues/6687)
-* **Singlestat**: New aggregation on singlestat panel [#6740](https://github.com/grafana/grafana/pull/6740)
+* **Victorops**: Add VictorOps notification integration [#6411](https://github.com/grafana/grafana/issues/6411), thx [@ichekrygin](https://github.com/ichekrygin)
+* **Opsgenie**: Add OpsGenie notification integratiion [#6687](https://github.com/grafana/grafana/issues/6687), thx [@kylemcc](https://github.com/kylemcc)
+* **Singlestat**: New aggregation on singlestat panel [#6740](https://github.com/grafana/grafana/pull/6740), thx [@dirk-leroux](https://github.com/dirk-leroux)
 * **Cloudwatch**: Make it possible to specify access and secret key on the data source config page [#6697](https://github.com/grafana/grafana/issues/6697)
-* **Table**: Added Hidden Column Style for Table Panel [#5677](https://github.com/grafana/grafana/pull/5677)
+* **Table**: Added Hidden Column Style for Table Panel [#5677](https://github.com/grafana/grafana/pull/5677), thx [@bmundt](https://github.com/bmundt)
 * **Graph**: Shared crosshair option renamed to shared tooltip, shows tooltip on all graphs as you hover over one graph. [#1578](https://github.com/grafana/grafana/pull/1578), [#6274](https://github.com/grafana/grafana/pull/6274)
-* **Elasticsearch**: Added support for Missing option (bucket) for terms aggregation [#4244](https://github.com/grafana/grafana/pull/4244), thx @shanielh
-* **Elasticsearch**: Added support for Elasticsearch 5.x (by [@lpic10](https://github.com/lpic10)) [#6356](https://github.com/grafana/grafana/pull/6356)
+* **Elasticsearch**: Added support for Missing option (bucket) for terms aggregation [#4244](https://github.com/grafana/grafana/pull/4244), thx [@shanielh](https://github.com/shanielh)
+* **Elasticsearch**: Added support for Elasticsearch 5.x [#6356](https://github.com/grafana/grafana/pull/6356), thx [@lpic10](https://github.com/lpic10)
 
 ### Bugfixes
 * **API**: HTTP API for deleting org returning incorrect message for a non-existing org [#6679](https://github.com/grafana/grafana/issues/6679)