Refine Presto chart readme

charts/presto/README.md

@@ -2,59 +2,64 @@
 [Presto](https://prestodb.io) is a Fast and Reliable SQL Engine for Data Analytics and the Open Lakehouse.
 
 ## Introduction
-This chart bootstraps a [Presto](https://github.com/prestodb/presto) on a [Kubernetes](https://kubernetes.io) cluster using the [Helm](https://helm.sh) package manager.
+This chart bootstraps a [Presto](https://prestodb.io) on a [Kubernetes](https://kubernetes.io) cluster using the [Helm](https://helm.sh) package manager.
 
 ## Prerequisites
-- Kubernetes 1.23+
+- Kubernetes 1.27+
 - Helm 3
 
-## Add Presto charts Helm repo
-Use the following command to add Presto charts repository to Helm configuration:
+## Presto charts Helm repository
+Helm chart repository is a location where packaged charts can be stored and shared.
+
+Use the following command to add Presto charts repository to Helm client configuration:
 ```shell
-$ helm repo add presto https://prestodb.github.io/presto-helm-charts
+helm repo add presto https://prestodb.github.io/presto-helm-charts
 ```
 
 ## Installing the Chart
 Install the chart with `my-presto` release name:
 ```shell
-$ helm install my-presto presto/presto
+helm install my-presto presto/presto
 ```
 
 ## Uninstalling the Chart
 Uninstall `my-presto` release:
 ```shell
-$ helm uninstall my-presto
+helm uninstall my-presto
 ```
 
 ## Configuration
-Refer default `values.yaml` file of the chart for all the possible config properties:
+Refer default `values.yaml` file of the chart for all the possible configuration properties:
 ```shell
-$ helm show values presto/presto
+helm show values presto/presto
 ```
 
 ## Presto deployment modes
 The chart supports three Presto deployment modes: single, cluster and highly available cluster.
 
 ### Single
 Minimal Presto deployment, where single pod acts as Coordinator and Worker.
-This mode can be used for experimentation and testing purposes in environments with limited resources.\
+This mode can be used for experimentation and testing purposes in environments with limited resources.
+
 The following command installs Presto in **single** mode:
 ```shell
-$ helm install my-presto presto/presto --set mode=single
+helm install my-presto presto/presto --set mode=single
 ```
 
 ### Cluster
 Standard Presto deployment with one Coordinator and multiple Workers.
-The chart deploys Presto in cluster mode by default.\
+The chart deploys Presto in cluster mode by default.
+
 The following command installs Presto in **cluster** mode with 3 workers:
 ```shell
-$ helm install my-presto presto/presto --set mode=cluster --set worker.replicas=3
+helm install my-presto presto/presto --set mode=cluster --set worker.replicas=3
 ```
 
 ### Highly Available Cluster
-Highly available Presto deployment with multiple Resource Managers, Coordinators and Workers.
-This mode allows to avoid single point of failure and mitigate coordinator bottleneck in high load Presto clusters.\
+Highly available Presto deployment with Resource Manager and multiple Coordinators and Workers.
+This mode allows to avoid single point of failure for coordinator and mitigate coordinator bottleneck in high load Presto clusters.
+
 The following command installs Presto in **ha-cluster** mode with 2 coordinators and 3 workers:
 ```shell
-$ helm install my-presto presto/presto --set mode=ha-cluster --set coordinator.replicas=2 --set worker.replicas=3
+helm install my-presto presto/presto --set mode=ha-cluster --set coordinator.replicas=2 --set worker.replicas=3
 ```