support custom label name

the standard is cluster

1 files changed, 6 insertions, 0 deletions

diff --git a/README.md b/README.md
index dc5c278..57f9ce8 100644
--- a/README.md
+++ b/README.md
@@ -334,6 +334,12 @@ For example, if your cluster has the Prometheus label `cluster: "my-cluster-name
 krr.py simple -p http://my-centralized-prometheus:9090 -l my-cluster-name
 ```
 
+If you are using a label other than `cluster` for example the label `env: "dev-tests"` you can specify it by running:
+
+```sh
+krr.py simple -p http://my-centralized-prometheus:9090 --prometheus-label env -l dev-tests
+```
+
 <p align="right">(<a href="#readme-top">back to top</a>)</p>
 
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