[nr-k8s-otel-collector] Adding metrics and LowDataMode info (#1431)

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- [ ] Chart Version bumped
- [ ] Variables are documented in the README.md
- [ ] Title of the PR starts with chart name (e.g. `[mychartname]`)

---------

Co-authored-by: ramkrishankumarN <[email protected]>

charts/nr-k8s-otel-collector/Chart.yaml

@@ -17,7 +17,7 @@ type: application
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
 # Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 0.7.0
+version: 0.7.1
 
 dependencies:
   - name: common-library

charts/nr-k8s-otel-collector/README.md

@@ -105,7 +105,7 @@ daemonset:
 | kube-state-metrics.prometheusScrape | bool | `false` | Disable prometheus from auto-discovering KSM and potentially scraping duplicated data |
 | labels | object | `{}` | Additional labels for chart objects |
 | licenseKey | string | `""` | This set this license key to use. Can be configured also with `global.licenseKey` |
-| lowDataMode | bool | `false` | Send only the metrics required to light up the NR kubernetes UI, this agent defaults to setting lowDataMode true, but if this setting is unset, lowDataMode will be set to false |
+| lowDataMode | bool | `false` | Send only the [metrics required](https://github.com/newrelic/helm-charts/tree/master/charts/nr-k8s-otel-collector/docs/metrics-lowDataMode.md) to light up the NR kubernetes UI, this agent defaults to setting lowDataMode true, but if this setting is unset, lowDataMode will be set to false |
 | nodeSelector | object | `{}` | Sets all pods' node selector. Can be configured also with `global.nodeSelector` |
 | nrStaging | bool | `false` | Send the metrics to the staging backend. Requires a valid staging license key. Can be configured also with `global.nrStaging` |
 | podLabels | object | `{}` | Additional labels for chart pods |
@@ -128,6 +128,11 @@ daemonset:
 
 **Note:** If all receivers are disabled in the deployment or in the daemonset, the agent will not start.
 
+## Metrics
+
+* [Metrics - Full list](https://github.com/newrelic/helm-charts/tree/master/charts/nr-k8s-otel-collector/docs/metrics-full.md)
+* [Metrics - LowDataMode list](https://github.com/newrelic/helm-charts/tree/master/charts/nr-k8s-otel-collector/docs/metrics-lowDataMode.md)
+
 ## Common Errors
 
 ### Exporting Errors