Update current and stable build branches on AspireUpdate, update links (

#20)

* added testing instructions courtesty of Colin Stewart (@costdev)

* added a new diagram for overall architecture

* updated contributors, added diagram on aspirecloud for federation model

* Update index.md

typo in discussion

Signed-off-by: Alex Sirota <[email protected]>

* updated links to updates for each project contributors and links to getting started.

* changed API key requirement on AU

* add WP playground section to AU docs

* added AU releases link

* update link to WP playground blueprint.json to point to main branch

* update current and stable build branches

* update link to blueprint.json

---------

Signed-off-by: Alex Sirota <[email protected]>

docs/aspireupdate/index.md

@@ -6,14 +6,18 @@ permalink: /aspireupdate/
 
 # What is AspireUpdate?
 
+# What is AspireUpdate?
+
+[AspireUpdate](https://github.com/aspirepress/AspireUpdate) is an open source WordPress plugin that enables WordPress sites to use an alternative repository for updates. The plugin reverts to WordPress.org repository when updates are not available in the configured AspireCloud instance.
 [AspireUpdate](https://github.com/aspirepress/AspireUpdate) is an open source WordPress plugin that enables WordPress sites to use an alternative repository for updates. The plugin reverts to WordPress.org repository when updates are not available in the configured AspireCloud instance.
 
 ## How to install AspireUpdate
 
+Download and Install AspireUpdate:
 Download and Install AspireUpdate:
 
 [Current Build](https://github.com/aspirepress/AspireUpdate/tree/main)
-[Stable Build](https://github.com/aspirepress/AspireUpdate/tree/main)
+[Stable Build](https://github.com/aspirepress/AspireUpdate/tree/playground-ready)
 [Releases](https://github.com/aspirepress/AspireUpdate/releases)
 
 No API Key is currently required.
@@ -22,7 +26,7 @@ No API Key is currently required.
 
 [Try out AspireUpdate WP Playground](https://playground.wordpress.net/?blueprint-url=https://raw.githubusercontent.com/aspirepress/AspireUpdate/refs/heads/playground-ready/assets/playground/blueprint.json)
 
-[Look at WP Playground Blueprint.json](https://github.com/aspirepress/AspireUpdate/blob/playground-ready/assets/playground/blueprint.json)
+[Review the WP Playground blueprint.json](https://github.com/aspirepress/AspireUpdate/blob/playground-ready/assets/playground/blueprint.json)
 
 ## Design of Phase 1 of AspirePress