Update company affiliation for jack-berg

Author: jack-berg

README.md

@@ -138,10 +138,10 @@ For more information about the maintainer role, see the [community repository](h
 
 ### Approvers
 
-- [Gregor Zeitlinger](https://github.com/zeitlinger), Grafana
-- [Jack Berg](https://github.com/jack-berg), New Relic
+- [Gregor Zeitlinger](https://github.com/zeitlinger), Grafana Labs
+- [Jack Berg](https://github.com/jack-berg), Grafana Labs
 - [Jason Plumb](https://github.com/breedx-splk), Splunk
-- [Jay DeLuca](https://github.com/jaydeluca), Grafana
+- [Jay DeLuca](https://github.com/jaydeluca), Grafana Labs
 - [Jean Bisutti](https://github.com/jeanbisutti), Microsoft
 - [John Watson](https://github.com/jkwatson), Cloudera
 - [Jonas Kunz](https://github.com/JonasKunz), Elastic