Use stable guides link for package READMEs

E.g.: These show up here:
https://api.rubyonrails.org/files/actioncable/README_md.html

actioncable/README.md

@@ -7,7 +7,7 @@ and scalable. It's a full-stack offering that provides both a client-side
 JavaScript framework and a server-side Ruby framework. You have access to your full
 domain model written with Active Record or your ORM of choice.
 
-You can read more about Action Cable in the [Action Cable Overview](https://edgeguides.rubyonrails.org/action_cable_overview.html) guide.
+You can read more about Action Cable in the [Action Cable Overview](https://guides.rubyonrails.org/action_cable_overview.html) guide.
 
 ## Support
 

actionmailbox/README.md

@@ -6,7 +6,7 @@ The inbound emails are turned into `InboundEmail` records using Active Record an
 
 These inbound emails are routed asynchronously using Active Job to one or several dedicated mailboxes, which are capable of interacting directly with the rest of your domain model.
 
-You can read more about Action Mailbox in the [Action Mailbox Basics](https://edgeguides.rubyonrails.org/action_mailbox_basics.html) guide.
+You can read more about Action Mailbox in the [Action Mailbox Basics](https://guides.rubyonrails.org/action_mailbox_basics.html) guide.
 
 ## License
 

actionmailer/README.rdoc

@@ -13,7 +13,7 @@ Additionally, an Action Mailer class can be used to process incoming email,
 such as allowing a blog to accept new posts from an email (which could even
 have been sent from a phone).
 
-You can read more about Action Mailer in the {Action Mailer Basics}[https://edgeguides.rubyonrails.org/action_mailer_basics.html] guide.
+You can read more about Action Mailer in the {Action Mailer Basics}[https://guides.rubyonrails.org/action_mailer_basics.html] guide.
 
 == Sending emails
 

actiontext/README.md

@@ -2,7 +2,7 @@
 
 Action Text brings rich text content and editing to Rails. It includes the [Trix editor](https://trix-editor.org) that handles everything from formatting to links to quotes to lists to embedded images and galleries. The rich text content generated by the Trix editor is saved in its own RichText model that's associated with any existing Active Record model in the application. Any embedded images (or other attachments) are automatically stored using Active Storage and associated with the included RichText model.
 
-You can read more about Action Text in the [Action Text Overview](https://edgeguides.rubyonrails.org/action_text_overview.html) guide.
+You can read more about Action Text in the [Action Text Overview](https://guides.rubyonrails.org/action_text_overview.html) guide.
 
 ## Development
 

actionview/README.rdoc

@@ -5,7 +5,7 @@ view helpers that assist when building HTML forms, Atom feeds and more.
 Template formats that Action View handles are ERB (embedded Ruby, typically
 used to inline short Ruby snippets inside HTML), and XML Builder.
 
-You can read more about Action View in the {Action View Overview}[https://edgeguides.rubyonrails.org/action_view_overview.html] guide.
+You can read more about Action View in the {Action View Overview}[https://guides.rubyonrails.org/action_view_overview.html] guide.
 
 == Download and installation
 

activejob/README.md

@@ -17,7 +17,7 @@ about API differences between Delayed Job and Resque. Picking your queuing
 backend becomes more of an operational concern, then. And you'll be able to
 switch between them without having to rewrite your jobs.
 
-You can read more about Active Job in the [Active Job Basics](https://edgeguides.rubyonrails.org/active_job_basics.html) guide.
+You can read more about Active Job in the [Active Job Basics](https://guides.rubyonrails.org/active_job_basics.html) guide.
 
 ## Usage
 

activemodel/README.rdoc

@@ -5,7 +5,7 @@ They allow for Action Pack helpers to interact with non-Active Record models,
 for example. Active Model also helps with building custom ORMs for use outside of
 the Rails framework.
 
-You can read more about Active Model in the {Active Model Basics}[https://edgeguides.rubyonrails.org/active_model_basics.html] guide.
+You can read more about Active Model in the {Active Model Basics}[https://guides.rubyonrails.org/active_model_basics.html] guide.
 
 Prior to Rails 3.0, if a plugin or gem developer wanted to have an object
 interact with Action Pack helpers, it was required to either copy chunks of

activerecord/README.rdoc

@@ -13,7 +13,7 @@ columns. Although these mappings can be defined explicitly, it's recommended
 to follow naming conventions, especially when getting started with the
 library.
 
-You can read more about Active Record in the {Active Record Basics}[https://edgeguides.rubyonrails.org/active_record_basics.html] guide.
+You can read more about Active Record in the {Active Record Basics}[https://guides.rubyonrails.org/active_record_basics.html] guide.
 
 A short rundown of some of the major features:
 

activestorage/README.md

@@ -6,7 +6,7 @@ Files can be uploaded from the server to the cloud or directly from the client t
 
 Image files can furthermore be transformed using on-demand variants for quality, aspect ratio, size, or any other [MiniMagick](https://github.com/minimagick/minimagick) or [Vips](https://www.rubydoc.info/gems/ruby-vips/Vips/Image) supported transformation.
 
-You can read more about Active Storage in the [Active Storage Overview](https://edgeguides.rubyonrails.org/active_storage_overview.html) guide.
+You can read more about Active Storage in the [Active Storage Overview](https://guides.rubyonrails.org/active_storage_overview.html) guide.
 
 ## Compared to other storage solutions
 

activesupport/README.rdoc

@@ -5,7 +5,7 @@ extensions that were found useful for the Rails framework. These additions
 reside in this package so they can be loaded as needed in Ruby projects
 outside of Rails.
 
-You can read more about the extensions in the {Active Support Core Extensions}[https://edgeguides.rubyonrails.org/active_support_core_extensions.html] guide.
+You can read more about the extensions in the {Active Support Core Extensions}[https://guides.rubyonrails.org/active_support_core_extensions.html] guide.
 
 == Download and installation