[chore] fix committer name (#2555)

Author: atoulme

ibm-mq-metrics/README.md

@@ -232,7 +232,7 @@ See [docs/metrics.md](docs/metrics.md).
 
 ## Component Owners
 
-- [Antoine Toulme Sharma](https://github.com/atoulme), Splunk
+- [Antoine Toulme](https://github.com/atoulme), Splunk
 - [Jason Plumb](https://github.com/breedx-splk), Splunk
 
 Learn more about component owners in [component_owners.yml](../.github/component_owners.yml).