Address code review feedback for configuration documentation

- Fix CHANGELOG PR format from [PR 2011] to [PR #2011] for consistency
- Enhance test configuration comments in generator template for clarity
  - Add warning emoji and "ONLY ONE" emphasis
  - Expand approach descriptions with bullet points
  - Clarify that alternative approach requires both uncommenting AND TestHelper setup
- Add 'text' language tag to directory structure code block in configuration.md
- Replace Rails.root paths with absolute GitHub URLs in doctor.rb
  - Ensures documentation links work in all execution contexts

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: justin808

CHANGELOG.md

@@ -55,7 +55,7 @@ Changes since the last non-beta release.
 
 #### Documentation
 
-- **Simplified Configuration Files**: Improved configuration documentation and generator template for better clarity and usability. Reduced generator template from 67 to 42 lines (37% reduction). Added comprehensive testing configuration guide. Reorganized configuration docs into Essential vs Advanced sections. Enhanced Doctor program with diagnostics for server rendering and test compilation consistency. [PR 2011](https://github.com/shakacode/react_on_rails/pull/2011) by [justin808](https://github.com/justin808).
+- **Simplified Configuration Files**: Improved configuration documentation and generator template for better clarity and usability. Reduced generator template from 67 to 42 lines (37% reduction). Added comprehensive testing configuration guide. Reorganized configuration docs into Essential vs Advanced sections. Enhanced Doctor program with diagnostics for server rendering and test compilation consistency. [PR #2011](https://github.com/shakacode/react_on_rails/pull/2011) by [justin808](https://github.com/justin808).
 
 #### Deprecated
 

docs/api-reference/configuration.md

@@ -676,7 +676,7 @@ config.build_production_command = BuildProductionCommand
 
 Recommended directory structure with private server bundles:
 
-```
+```text
 app/
 ├── ssr-generated/           # Private server bundles (never served to browsers)
 │   ├── server-bundle.js

lib/generators/react_on_rails/templates/base/base/config/initializers/react_on_rails.rb.tt

@@ -15,14 +15,16 @@ ReactOnRails.configure do |config|
   ################################################################################
   # Test Configuration (Optional)
   ################################################################################
-  # Two mutually exclusive approaches - use ONE of the following:
+  # ⚠️ IMPORTANT: Two mutually exclusive approaches - use ONLY ONE:
   #
-  # RECOMMENDED: Set `compile: true` in config/shakapacker.yml for test environment
-  # This is simpler and handled automatically by Shakapacker.
+  # RECOMMENDED APPROACH: Set `compile: true` in config/shakapacker.yml test section
+  # - Simpler configuration (no additional setup needed)
+  # - Handled automatically by Shakapacker
   #
-  # ALTERNATIVE: Uncomment below and add ReactOnRails::TestHelper to spec helpers
-  # Use this approach only if you need explicit control over test asset compilation.
-  # See: https://github.com/shakacode/react_on_rails/blob/master/docs/guides/testing-configuration.md
+  # ALTERNATIVE APPROACH: Uncomment below AND configure ReactOnRails::TestHelper
+  # - Provides explicit control over test asset compilation timing
+  # - Requires adding ReactOnRails::TestHelper to spec/rails_helper.rb
+  # - See: https://github.com/shakacode/react_on_rails/blob/master/docs/guides/testing-configuration.md
   #
   # config.build_test_command = "RAILS_ENV=test bin/shakapacker"
 

lib/react_on_rails/doctor.rb

@@ -1186,7 +1186,7 @@ def check_build_test_configuration
             checker.add_info("  💡 These are mutually exclusive - use only one approach")
             checker.add_info("  💡 Recommended: Use compile: true in shakapacker.yml (simpler)")
             checker.add_info("  💡 Alternative: Use build_test_command with ReactOnRails::TestHelper (explicit control)")
-            checker.add_info("  📖 See: #{Rails.root}/docs/guides/testing-configuration.md")
+            checker.add_info("  📖 See: https://github.com/shakacode/react_on_rails/blob/master/docs/guides/testing-configuration.md")
           elsif has_build_test_command && !uses_test_helper
             checker.add_warning("  ⚠️  build_test_command is set but ReactOnRails::TestHelper is not configured")
             checker.add_info("  💡 Add to spec/rails_helper.rb:")
@@ -1201,7 +1201,7 @@ def check_build_test_configuration
             checker.add_warning("  ⚠️  No test asset compilation configured")
             checker.add_info("  💡 Recommended: Add to shakapacker.yml test section:")
             checker.add_info("      compile: true")
-            checker.add_info("  📖 See: #{Rails.root}/docs/guides/testing-configuration.md")
+            checker.add_info("  📖 See: https://github.com/shakacode/react_on_rails/blob/master/docs/guides/testing-configuration.md")
           elsif has_compile_true
             checker.add_success("  ✅ Test assets configured via Shakapacker auto-compilation")
             checker.add_info("      (compile: true in shakapacker.yml)")