chore: add relevant dropped / overwritten sections in README

Author: GautamSharda

handwritten/error-reporting/README.md

@@ -10,7 +10,9 @@
 
 
 
-Error Reporting Client Library for Node.js
+> Node.js idiomatic client for [Error Reporting][product-docs].
+
+[Error Reporting](https://cloud.google.com/error-reporting/docs/) aggregates and displays errors produced in your running cloud services.
 
 
 A comprehensive list of changes in each version may be found in
@@ -43,7 +45,7 @@ Google APIs Client Libraries, in [Client Libraries Explained][explained].
 
 1.  [Select or create a Cloud Platform project][projects].
 1.  [Enable the Error Reporting API][enable_api].
-1.  [Set up authentication][auth] so you can access the
+1.  [Set up authentication with a service account][auth] so you can access the
     API from your local workstation.
 
 ### Installing the client library
@@ -52,7 +54,35 @@ Google APIs Client Libraries, in [Client Libraries Explained][explained].
 npm install @google-cloud/error-reporting
 ```
 
+This module provides custom Error Reporting support for Node.js applications.
+[Error Reporting](https://cloud.google.com/error-reporting/) is a feature of
+Google Cloud Platform that allows in-depth monitoring and viewing of errors reported by
+applications running in almost any environment.
+
+However, note that [@google-cloud/logging-winston](https://github.com/googleapis/nodejs-logging-winston) and [@google-cloud/logging-bunyan](https://github.com/googleapis/nodejs-logging-bunyan) automatically integrate with the Error Reporting service for Error objects logged at severity `error` or higher, for applications running on Google Cloud Platform.
+
+Thus, if you are already using Winston or Bunyan in your application, and don't need custom error reporting capabilities, you do not need to use the `@google-cloud/error-reporting` library directly to report errors to the Error Reporting Console.
+
+![Error Reporting overview](https://raw.githubusercontent.com/googleapis/nodejs-error-reporting/master/doc/images/errors-overview.png)
+
+# When Errors Are Reported
+
+The `reportMode` configuration option is used to specify when errors are reported to the Error Reporting Console.  It can have one of three values:
+* `'production'` (default): Only report errors if the NODE_ENV environment variable is set to "production".
+* `'always'`: Always report errors regardless of the value of NODE_ENV.
+* `'never'`: Never report errors regardless of the value of NODE_ENV.
+
+The `reportMode` configuration option replaces the deprecated `ignoreEnvironmentCheck` configuration option.  If both the `reportMode` and `ignoreEnvironmentCheck` options are specified, the `reportMode` configuration option takes precedence.
+
+The `ignoreEnvironmentCheck` option should not be used.  However, if it is used, and the `reportMode` option is not specified, it can have the values:
+* `false` (default): Only report errors if the NODE_ENV environment variable is set to "production".
+* `true`: Always report errors regardless of the value of NODE_ENV.
+
+## Setup, Configuration, and Examples
+
+See the documentation for setup instructions, configuration options, and examples: https://cloud.google.com/error-reporting/docs/setup/nodejs 
 
+Additional code samples can also be found here: https://github.com/GoogleCloudPlatform/nodejs-docs-samples/tree/main/error-reporting
 
 
 
@@ -122,4 +152,4 @@ See [LICENSE](https://github.com/googleapis/google-cloud-node/blob/main/LICENSE)
 [projects]: https://console.cloud.google.com/project
 [billing]: https://support.google.com/cloud/answer/6293499#enable-billing
 [enable_api]: https://console.cloud.google.com/flows/enableapi?apiid=clouderrorreporting.googleapis.com
-[auth]: https://cloud.google.com/docs/authentication/external/set-up-adc-local
+[auth]: https://cloud.google.com/docs/authentication/getting-started