Merge branch '508887-model-experiments-add-button-to-mlflow-usage-example' into 'master'

Model Experiments: Add menu item to MLflow usage example

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/175813



Merged-by: Alper Akgun <aakgun@gitlab.com>
Approved-by: Andras Herczeg <aherczeg@gitlab.com>
Approved-by: Vitaly Slobodin <vslobodin@gitlab.com>
Approved-by: Eduardo Bonet <ebonet@gitlab.com>
Reviewed-by: Alper Akgun <aakgun@gitlab.com>