Update README.md

README.md

@@ -169,7 +169,7 @@ The cluster configuration is stored in the `k8s/*` directories where the structu
 - [KSail](https://github.com/devantler/ksail) - For developing the cluster locally, and for running the cluster in CI to ensure all changes are properly tested before being applied to the production cluster.
 - [K8sGPT](https://k8sgpt.ai) - To analyze the cluster for improvements, vulnerabilities or bugs. It integrates with Trivy and Kuverno to also provide security and policy suggestions.
 
-### Cost
+### Monthly Cost
 
 | Item               | No. | Per unit | Total   |
 | ------------------ | --- | -------- | ------- |