added links for helm charts and custom header logging feature

Author: sreejithgs

README.md

@@ -8,7 +8,7 @@
 
  - [Zipkin](https://zipkin.io/)
  - [Kafka](https://kafka.apache.org/)
- - [Elasticsearch](https://www.elastic.co/products/elasticsearch) 
+ - [Elasticsearch](https://www.elastic.co/products/elasticsearch)
  - [Prometheus](https://prometheus.io/docs/introduction/overview/)
 
 ## Overview
@@ -53,7 +53,14 @@ When Prometheus is specified as the format for time series data, Citrix Observab
 
 ## Deployment
 
-You can deploy Citrix Observability Exporter using Kubernetes YAML or Helm charts. To deploy Citrix Observability Exporter using Kubernetes YAML, see [Deployment](deployment/README.md).
+You can deploy Citrix Observability Exporter using Kubernetes YAML or Helm charts. To deploy Citrix Observability Exporter using Kubernetes YAML, see [Deployment](deployment/README.md). To deploy Citrix Observability Exporter using Helm charts, see [Deploy using Helm charts](https://github.com/citrix/citrix-helm-charts/tree/master/citrix-observability-exporter).
+
+## Features
+
+### Custom header logging
+
+Custom header logging enables logging of all HTTP headers of a transaction and currently supported on the Kafka endpoint.
+For more information, see [Custom header logging](https://github.com/citrix/citrix-observability-exporter/tree/master/custom-header).
 
 ## Questions
 

deployment/README.md

@@ -1,6 +1,7 @@
 # Deploy Citrix Observability Exporter
 
 This topic provides information on how to deploy Citrix Observability Exporter using Kubernetes YAML files.
+To deploy Citrix Observability Exporter using Helm charts, see [Deploy using Helm charts](https://github.com/citrix/citrix-helm-charts/tree/master/citrix-observability-exporter).
 <!---
 You can deploy Citrix Observability Exporter using Kubernetes YAML files or using Helm charts. 
 -->

docs/deploy-coe.md

@@ -1,6 +1,6 @@
 # Deploy Citrix Observability Exporter
 
-This topic provides information on how to deploy Citrix Observability Exporter using Kubernetes YAML files.
+This topic provides information on how to deploy Citrix Observability Exporter using Kubernetes YAML files. To deploy Citrix Observability Exporter using Helm charts, see [Deploy using Helm charts](https://github.com/citrix/citrix-helm-charts/tree/master/citrix-observability-exporter).
 <!---
 You can deploy Citrix Observability Exporter using Kubernetes YAML files. 
 -->

docs/index.md

@@ -54,5 +54,11 @@ When Prometheus is specified as the format for time series data, Citrix Observab
 
 ## Deployment
 
-You can deploy Citrix Observability Exporter using Kubernetes YAML. To deploy Citrix Observability Exporter using Kubernetes YAML, see [Deployment](deploy-coe.md).
+You can deploy Citrix Observability Exporter using Kubernetes YAML. To deploy Citrix Observability Exporter using Kubernetes YAML, see [Deployment](deploy-coe.md). To deploy Citrix Observability Exporter using Helm charts, see [Deploy using Helm charts](https://github.com/citrix/citrix-helm-charts/tree/master/citrix-observability-exporter).
 
+## Features
+
+### Custom header logging
+
+Custom header logging enables logging of all HTTP headers of a transaction and currently supported on the Kafka endpoint.
+For more information, see [Custom header logging](https://github.com/citrix/citrix-observability-exporter/tree/master/custom-header).