Add "Enabling Collaborative Editing" Yjs guide to the docs

docs/Summary.md

@@ -10,6 +10,7 @@
 - [Applying Custom Formatting](walkthroughs/04-applying-custom-formatting.md)
 - [Executing Commands](walkthroughs/05-executing-commands.md)
 - [Saving to a Database](walkthroughs/06-saving-to-a-database.md)
+- [Enabling Collaborative Editing](walkthroughs/07-enabling-collaborative-editing.md)
 - [Using the Bundled Source](walkthroughs/xx-using-the-bundled-source.md)
 
 ## Concepts

docs/general/resources.md

@@ -6,16 +6,21 @@ A few resources that are helpful for building with Slate.
 
 These libraries are helpful when developing with Slate:
 
-- [`is-hotkey`](https://github.com/ianstormtaylor/is-hotkey) is a simple way to check whether an `onKeyDown` handler should fire for a given hotkey, handling cross-platform concerns like cmd vs. ctrl keys for you automatically.
+- [`is-hotkey`](https://github.com/ianstormtaylor/is-hotkey) is a simple way to check whether an `onKeyDown` handler
+  should fire for a given hotkey, handling cross-platform concerns like cmd vs. ctrl keys for you automatically.
 
 ## Extensions and Plugins
 
 These extensions and plugins add additional features and capabilities to Slate:
 
+- [@liveblocks/yjs](https://liveblocks.io/docs/api-reference/liveblocks-yjs) A fully-hosted WebSocket infrastructure and
+  persisted data store for Yjs documents
 - [Plate](https://github.com/udecode/plate) Rich text editor plugin system for Slate & React
-- [`slate-angular`](https://github.com/worktile/slate-angular) Angular-based view layer, which is a useful supplement to Slate for building a rich text editor using Angular.
+- [`slate-angular`](https://github.com/worktile/slate-angular) Angular-based view layer, which is a useful supplement to
+  Slate for building a rich text editor using Angular.
 - [`slate-yjs`](https://github.com/BitPhinix/slate-yjs/) Collaborative editing utilities for Slate leveraging Yjs
-- [`slate-collaborative`](https://github.com/cudr/slate-collaborative) Collaborative editing utilities for Slate leveraging Automerge
+- [`slate-collaborative`](https://github.com/cudr/slate-collaborative) Collaborative editing utilities for Slate
+  leveraging Automerge
 
 ## Products
 
@@ -53,15 +58,22 @@ These products use Slate, and can give you an idea of what's possible:
 
 These pre-packaged editors are built on top of Slate, and can be helpful to see how you might structure your code:
 
-- [Accord Project Markdown Editor](https://github.com/accordproject/web-components) is a WYSIWYG editor for [CommonMark](https://commonmark.org/).
+- [Accord Project Markdown Editor](https://github.com/accordproject/web-components) is a WYSIWYG editor
+  for [CommonMark](https://commonmark.org/).
 - [Canner Editor](https://github.com/Canner/canner-slate-editor) is a rich text editor.
-- [Chatterslate](https://github.com/chatterbugapp/chatterslate) helps teach language grammar and more at [Chatterbug](https://chatterbug.com).
+- [Chatterslate](https://github.com/chatterbugapp/chatterslate) helps teach language grammar and more
+  at [Chatterbug](https://chatterbug.com).
 - [CoCalc](https://github.com/sagemathinc/cocalc/) Collaborative Calculation editor in the Cloud
-- [French Press Editor](https://github.com/roast-cms/french-press-editor) is a customizeable editor with offline support.
+- [French Press Editor](https://github.com/roast-cms/french-press-editor) is a customizeable editor with offline
+  support.
 - [Nossas Editor](http://slate-editor.bonde.org/) is a drop-in WYSIWYG editor.
-- [React Force Slate Editor](https://github.com/nareshbhatia/react-force/tree/master/packages/slate-editor) is a light-weight medium-style editor with no editor chrome.
-- [React Page](https://github.com/react-page/react-page) is a self-contained, customizable inline WYSIWYG editor library.
-- [Slate Plugins Next](https://github.com/zbeyens/slate-plugins-next) provides an editor with configurable and extendable plugins.
+- [React Force Slate Editor](https://github.com/nareshbhatia/react-force/tree/master/packages/slate-editor) is a
+  light-weight medium-style editor with no editor chrome.
+- [React Page](https://github.com/react-page/react-page) is a self-contained, customizable inline WYSIWYG editor
+  library.
+- [Plate (Plugins for Slate)](https://github.com/udecode/plate) provides an editor with configurable and
+  extendable plugins.
+-
 - [Tripdocs](https://github.com/ctripcorp/tripdocs): It's a modern, production-ready rich text editor.
 
 \(Or, if you have their exact use case, can be a drop-in editor for you.\)