Update docs for 8.0

Author: JonRowe

README.md

@@ -9,6 +9,7 @@ detailed explanations of how the application is supposed to behave,
 expressed in plain English.
 
 According to [RSpec Rails new versioning strategy][] use:
+* **[`rspec-rails` 8.x][]** for Rails 8.0 or 7.2.
 * **[`rspec-rails` 7.x][]** for Rails 7.x.
 * **[`rspec-rails` 6.x][]** for Rails 6.1, 7.0 or 7.1.
 * **[`rspec-rails` 5.x][]** for Rails 5.2 or 6.x.
@@ -28,20 +29,22 @@ According to [RSpec Rails new versioning strategy][] use:
 [`rspec-rails` 5.x]: https://github.com/rspec/rspec-rails/tree/5-1-maintenance
 [`rspec-rails` 6.x]: https://github.com/rspec/rspec-rails/tree/6-1-maintenance
 [`rspec-rails` 7.x]: https://github.com/rspec/rspec-rails/tree/7-1-maintenance
+[`rspec-rails` 8.x]: https://github.com/rspec/rspec-rails/tree/8-0-maintenance
 [RSpec Rails new versioning strategy]: https://github.com/rspec/rspec-rails/blob/main/rfcs/versioning-strategy.md
 
 ## Installation
 
-**IMPORTANT** This README / branch refers to the current development build.
-See the [`7-1-maintenance` branch on Github](https://github.com/rspec/rspec-rails/tree/7-1-maintenance) if you want or require the latest stable release.
+**IMPORTANT** This README / branch refers to the 8.0.x stable release series, only bugfixes from this series will
+be added here. See the [`main` branch on Github](https://github.com/rspec/rspec-rails/tree/main) if you want or
+require the latest unstable features.https://github.com/rspec/rspec-rails/tree/8-0-maintenance) if you want or require the latest stable release.
 
 1. Add `rspec-rails` to **both** the `:development` and `:test` groups
    of your app’s `Gemfile`:
 
    ```ruby
    # Run against this stable release
    group :development, :test do
-     gem 'rspec-rails', '~> 7.0.0'
+     gem 'rspec-rails', '~> 8.0.0'
    end
 
    # Or, run against the main branch
@@ -85,7 +88,7 @@ read the [`rspec-rails` upgrade notes][] to find out what to watch out for.
 
 Be sure to check the general [RSpec upgrade notes][] as well.
 
-[`rspec-rails` upgrade notes]: https://rspec.info/features/7-1/rspec-rails/upgrade
+[`rspec-rails` upgrade notes]: https://rspec.info/features/8-0/rspec-rails/upgrade
 [RSpec upgrade notes]: https://rspec.info/upgrading-from-rspec-2/
 
 ## Usage
@@ -207,22 +210,22 @@ to test the various parts of a Rails system:
 Follow the links above for examples of how each matcher is used.
 
 [the matchers that come standard in RSpec]: https://rspec.info/features/3-12/rspec-expectations/built-in-matchers
-[`be_a_new`]: https://rspec.info/features/7-1/rspec-rails/matchers/new-record-matcher
-[`render_template`]: https://rspec.info/features/7-1/rspec-rails/matchers/render-template-matcher
-[`redirect_to`]: https://rspec.info/features/7-1/rspec-rails/matchers/redirect-to-matcher
-[`route_to`]: https://rspec.info/features/7-1/rspec-rails/routing-specs/route-to-matcher
-[`be_routable`]: https://rspec.info/features/7-1/rspec-rails/routing-specs/be-routable-matcher
-[`have_http_status`]: https://rspec.info/features/7-1/rspec-rails/matchers/have-http-status-matcher
-[`match_array`]: https://rspec.info/features/7-1/rspec-rails/matchers/relation-match-array
-[`have_been_enqueued`]: https://rspec.info/features/7-1/rspec-rails/matchers/have-been-enqueued-matcher
-[`have_enqueued_job`]: https://rspec.info/features/7-1/rspec-rails/matchers/have-enqueued-job-matcher
+[`be_a_new`]: https://rspec.info/features/8-0/rspec-rails/matchers/new-record-matcher
+[`render_template`]: https://rspec.info/features/8-0/rspec-rails/matchers/render-template-matcher
+[`redirect_to`]: https://rspec.info/features/8-0/rspec-rails/matchers/redirect-to-matcher
+[`route_to`]: https://rspec.info/features/8-0/rspec-rails/routing-specs/route-to-matcher
+[`be_routable`]: https://rspec.info/features/8-0/rspec-rails/routing-specs/be-routable-matcher
+[`have_http_status`]: https://rspec.info/features/8-0/rspec-rails/matchers/have-http-status-matcher
+[`match_array`]: https://rspec.info/features/8-0/rspec-rails/matchers/relation-match-array
+[`have_been_enqueued`]: https://rspec.info/features/8-0/rspec-rails/matchers/have-been-enqueued-matcher
+[`have_enqueued_job`]: https://rspec.info/features/8-0/rspec-rails/matchers/have-enqueued-job-matcher
 
 ### What else does RSpec Rails add?
 
 For a comprehensive look at RSpec Rails’ features,
 read the [official Cucumber documentation][].
 
-[official Cucumber documentation]: https://rspec.info/features/7-1/rspec-rails
+[official Cucumber documentation]: https://rspec.info/features/8-0/rspec-rails
 
 ## What tests should I write?
 
@@ -267,20 +270,20 @@ RSpec.describe User, type: :model do
 ...
 ```
 
-[request]: https://rspec.info/features/7-1/rspec-rails/request-specs/request-spec
-[feature]: https://rspec.info/features/7-1/rspec-rails/feature-specs/feature-spec
-[system]: https://rspec.info/features/7-1/rspec-rails/system-specs/system-specs
-[model]: https://rspec.info/features/7-1/rspec-rails/model-specs
-[controller]: https://rspec.info/features/7-1/rspec-rails/controller-specs
-[mailer]: https://rspec.info/features/7-1/rspec-rails/mailer-specs
-[job]: https://rspec.info/features/7-1/rspec-rails/job-specs/job-spec
-[view]: https://rspec.info/features/7-1/rspec-rails/view-specs/view-spec
-[routing]: https://rspec.info/features/7-1/rspec-rails/routing-specs
-[helper]: https://rspec.info/features/7-1/rspec-rails/helper-specs/helper-spec
+[request]: https://rspec.info/features/8-0/rspec-rails/request-specs/request-spec
+[feature]: https://rspec.info/features/8-0/rspec-rails/feature-specs/feature-spec
+[system]: https://rspec.info/features/8-0/rspec-rails/system-specs/system-specs
+[model]: https://rspec.info/features/8-0/rspec-rails/model-specs
+[controller]: https://rspec.info/features/8-0/rspec-rails/controller-specs
+[mailer]: https://rspec.info/features/8-0/rspec-rails/mailer-specs
+[job]: https://rspec.info/features/8-0/rspec-rails/job-specs/job-spec
+[view]: https://rspec.info/features/8-0/rspec-rails/view-specs/view-spec
+[routing]: https://rspec.info/features/8-0/rspec-rails/routing-specs
+[helper]: https://rspec.info/features/8-0/rspec-rails/helper-specs/helper-spec
 [`ActionDispatch::IntegrationTest`]: https://api.rubyonrails.org/classes/ActionDispatch/IntegrationTest.html
 [`ActionDispatch::SystemTestCase`]: https://api.rubyonrails.org/classes/ActionDispatch/SystemTestCase.html
 [`ActionController::TestCase`]: https://api.rubyonrails.org/classes/ActionController/TestCase.html
-[in the appropriate folder]: https://rspec.info/features/7-1/rspec-rails/directory-structure
+[in the appropriate folder]: https://rspec.info/features/8-0/rspec-rails/directory-structure
 
 ### System specs, feature specs, request specs–what’s the difference?