Update documentation

README.md

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 # tfmod-kiali
 
+Kiali is a web console for the Istio Service Mesh. It is analogous to how the Kubernetes Dashboard is a web console for Kubernetes, ie. it is a web interface for viewing configurations and operations of the system. Additionally, the same as the Kubernetes Dashboard, we deploy Kiali in a read-only manner, given mesh objects should only be configured through code and pipelines, not modification through web or command line. Kiali provides a useful tool for reviewing configurations and topology, observing mesh health and performance, and tracing along with its associated details. Additional details about Kiali can be reviewed at the [Kiali website](https://kiali.io/).
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+This module deploys and configures Kiali via its operator and integrates it with Istio and the other telemetry oriented tools of the cluster. 
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 <!-- BEGIN_TF_DOCS -->
 ## Requirements