Update docs (#333)

This pull request introduces significant improvements to the
documentation and configuration of the Scrum Guide Expansion Pack
project. The main focus is on clarifying the site's architecture,
restructuring content around a versioned guides model, and marking
legacy content for backward compatibility. Updates also include enhanced
guidance for AI assistants and improved documentation of the Hugo
module-based template system.

**Key changes include:**

---

### Content Architecture and Structure

* Refactored documentation (`docs/architecture.md`,
`docs/content-management.md`) to describe a **versioned guides model**:
each guide (core or extension) is a self-contained, version-controlled
document supporting multiple languages and independent updates. Legacy
creator content is now explicitly marked and separated.
[[1]](diffhunk://#diff-140eef3ba41bdcf401d507408084181f2c0ac627532b61e0f7906ea7cc926782L51-R95)
[[2]](diffhunk://#diff-140eef3ba41bdcf401d507408084181f2c0ac627532b61e0f7906ea7cc926782R112-R202)
[[3]](diffhunk://#diff-2ac4893aa0491d153ceea4eea80736120d2b356f801faf00ccd79151f38b9758L7-R109)
* Updated content structure examples and explanations to reflect the new
organization, emphasizing core and extension guides, versioning,
translation directories, and legacy content.

---

### Legacy Content and Backward Compatibility

* Marked the `creators/` section and related navigation/menu items as
**LEGACY** throughout configuration and documentation, clarifying its
backward compatibility status and that it is no longer actively
maintained.
[[1]](diffhunk://#diff-17ed18489a956f326ec0fe4040850c5bc9261d4631fb42da4c52891d74a59180L60-R60)
[[2]](diffhunk://#diff-17ed18489a956f326ec0fe4040850c5bc9261d4631fb42da4c52891d74a59180L228-R228)
[[3]](diffhunk://#diff-17ed18489a956f326ec0fe4040850c5bc9261d4631fb42da4c52891d74a59180L360-R360)
[[4]](diffhunk://#diff-3d36a1bf06148bc6ba1ce2ed3d19de32ea708d955fed212c0d27c536f0bd4da7L27-R51)

---

### Hugo Module and Template Management

* Expanded documentation to explain the use of the **Hugo Module
system** for template management, where base templates are imported from
an external module (`github.com/nkdAgility/HugoGuides/module`), and
local templates are only overrides or site-specific.
* Updated the site architecture documentation to show the new layouts
and template hierarchy under the Hugo module approach.

---

### AI Assistant Guidance

* Added explicit guidance and links for AI assistants in the project
documentation (`docs/README.md`), directing them to a dedicated agent
guide for working with the codebase.

---

### Workflow and Codeowners Updates

* Updated `.github/CODEOWNERS` to reflect the new content structure,
assigning owners to new extension guide directories and clarifying
ownership for legacy and new sections.
* Added warnings and comments to the Azure Static Web Apps workflow
file, marking it as deprecated and not to be edited or enabled.
* Minor formatting and consistency changes in workflow YAML files.

These changes collectively modernize the project's documentation and
configuration, making the structure clearer for contributors,
maintainers, and automated tools.

Author: MrHinsh

.github/CODEOWNERS

@@ -4,7 +4,7 @@
 
 # Remove default ownership for /site/content/ (will be handled by specific rules below)
 
-/site/content/
+/site/content/ 
 
 # Technical and configuration files
 
@@ -24,18 +24,31 @@ LICENSE @mrhinsh
 
 \*.md @ViralGoodAgile @rjocham
 
-# Site content - specific areas
-
-/site/content/guide/ @jeffsutherland @ViralGoodAgile @rjocham
-/site/content/creators/jeff-sutherland/ @jeffsutherland
-/site/content/creators/john-coleman/ @ViralGoodAgile
-/site/content/creators/ralph-jocham/ @rjocham
+# Site content - Extensions (by creator)
+
+/site/content/adaptive-enterprise/ @ViralGoodAgile @rjocham
+/site/content/adaptive-executive/ @ViralGoodAgile @rjocham
+/site/content/ai-and-scrum/ @rjocham @jeffsutherland
+/site/content/complexity/ @ViralGoodAgile @rjocham
+/site/content/emergent-strategy-and-depoyment/ @Tom-Gilb
+/site/content/holistic-testing/ @lisacrispin
+/site/content/multi-team-scrum/ @ViralGoodAgile @rjocham @jeffsutherland
+/site/content/operating-models/ @mrhinsh
+/site/content/planguage/ @Tom-Gilb
+/site/content/product-thinking/ @rjocham @Magdalena-Firlit
+/site/content/psychological-safety-in-scrum-teams/ @JotPePL
+/site/content/scrum-guide-expanded/ @ViralGoodAgile @rjocham @jeffsutherland
+/site/content/scrum-on-one-page/ @ViralGoodAgile @rjocham
+/site/content/software-engineering-practices/
+/site/content/strategy-as-an-empirical-capability/ @kjscotland
 
 # Site content - general areas
 
-/site/content/download/ @mrhinsh
 /site/content/\_index.md @ViralGoodAgile @rjocham
-/site/content/creators/\_index.md @ViralGoodAgile @rjocham
+/site/content/creators/ @ViralGoodAgile @rjocham
+/site/content/creators/jeff-sutherland/ @jeffsutherland
+/site/content/creators/john-coleman/ @ViralGoodAgile
+/site/content/creators/ralph-jocham/ @rjocham
 
 # Hugo theme and layout files