README.md in google-cloud-scheduler-1.3.1 vs README.md in google-cloud-scheduler-2.0.0

@@ -1,42 +1,54 @@
-# Ruby Client for Cloud Scheduler API
+# Ruby Client for the Cloud Scheduler API
 
-[Cloud Scheduler API][Product Documentation]:
-Creates and manages jobs run on a regular recurring schedule.
-- [Client Library Documentation][]
-- [Product Documentation][]
+API Client library for the Cloud Scheduler API
 
-## Quick Start
-In order to use this library, you first need to go through the following
-steps:
+Cloud Scheduler is a fully managed enterprise-grade cron job scheduler. It allows you to schedule virtually any job, including batch, big data jobs, cloud infrastructure operations, and more. You can automate everything, including retries in case of failure to reduce manual toil and intervention. Cloud Scheduler even acts as a single pane of glass, allowing you to manage all your automation tasks from one place.
 
-1. [Select or create a Cloud Platform project.](https://console.cloud.google.com/project)
-2. [Enable billing for your project.](https://cloud.google.com/billing/docs/how-to/modify-project#enable_billing_for_a_project)
-3. [Enable the Cloud Scheduler API.](https://console.cloud.google.com/apis/library/cloudscheduler.googleapis.com)
-4. [Setup Authentication.](https://googleapis.dev/ruby/google-cloud-scheduler/latest/file.AUTHENTICATION.html)
+Actual client classes for the various versions of this API are defined in
+_versioned_ client gems, with names of the form `google-cloud-scheduler-v*`.
+The gem `google-cloud-scheduler` is a convenience wrapper library that brings the
+verisoned gems in as dependencies, and provides high-level methods for
+constructing clients.
 
-### Installation
+View the [Client Library Documentation](https://googleapis.dev/ruby/google-cloud-scheduler/latest)
+for this library, google-cloud-scheduler, to see the convenience methods for
+constructing client objects. Reference documentation for the client objects
+themselves can be found in the client library documentation for the versioned
+client gems:
+[google-cloud-scheduler-v1](https://googleapis.dev/ruby/google-cloud-scheduler-v1/latest),
+[google-cloud-scheduler-v1beta1](https://googleapis.dev/ruby/google-cloud-scheduler-v1beta1/latest).
+
+See also the [Product Documentation](https://cloud.google.com/scheduler)
+for more usage information.
+
+## Quick Start
+
 ```
 $ gem install google-cloud-scheduler
 ```
 
-### Next Steps
-- Read the [Client Library Documentation][] for Cloud Scheduler API
-  to see other available methods on the client.
-- Read the [Cloud Scheduler API Product documentation][Product Documentation]
-  to learn more about the product and see How-to Guides.
-- View this [repository's main README](https://github.com/googleapis/google-cloud-ruby/blob/master/README.md)
-  to see the full list of Cloud APIs that we cover.
+In order to use this library, you first need to go through the following steps:
 
-[Client Library Documentation]: https://googleapis.dev/ruby/google-cloud-scheduler/latest
-[Product Documentation]: https://cloud.google.com/scheduler
+1. [Select or create a Cloud Platform project.](https://console.cloud.google.com/project)
+1. [Enable billing for your project.](https://cloud.google.com/billing/docs/how-to/modify-project#enable_billing_for_a_project)
+1. [Enable the API.](https://console.cloud.google.com/apis/library/cloudscheduler.googleapis.com)
+1. {file:AUTHENTICATION.md Set up authentication.}
 
+## Migrating from 1.x versions
+
+The 2.0 release of the google-cloud-scheduler client is a significant upgrade
+based on a [next-gen code generator](https://github.com/googleapis/gapic-generator-ruby),
+and includes substantial interface changes. Existing code written for earlier
+versions of this library will likely require updates to use this version.
+See the {file:MIGRATING.md MIGRATING.md} document for more information.
+
 ## Enabling Logging
 
 To enable logging for this library, set the logger for the underlying [gRPC](https://github.com/grpc/grpc/tree/master/src/ruby) library.
-The logger that you set may be a Ruby stdlib [`Logger`](https://ruby-doc.org/stdlib-2.5.0/libdoc/logger/rdoc/Logger.html) as shown below,
+The logger that you set may be a Ruby stdlib [`Logger`](https://ruby-doc.org/stdlib/libdoc/logger/rdoc/Logger.html) as shown below,
 or a [`Google::Cloud::Logging::Logger`](https://googleapis.dev/ruby/google-cloud-logging/latest)
-that will write logs to [Stackdriver Logging](https://cloud.google.com/logging/). See [grpc/logconfig.rb](https://github.com/grpc/grpc/blob/master/src/ruby/lib/grpc/logconfig.rb)
+that will write logs to [Cloud Logging](https://cloud.google.com/logging/). See [grpc/logconfig.rb](https://github.com/grpc/grpc/blob/master/src/ruby/lib/grpc/logconfig.rb)
 and the gRPC [spec_helper.rb](https://github.com/grpc/grpc/blob/master/src/ruby/spec/spec_helper.rb) for additional information.
 
 Configuring a Ruby stdlib logger:
 
 ```ruby