Fix broken links to available-models guide after relocation

Author: crmne

docs/guides/image-generation.md

@@ -96,7 +96,7 @@ RubyLLM.configure do |config|
 end
 ```
 
-Refer to the [Working with Models Guide]({% link guides/models.md %}) and the [Available Models Guide]({% link guides/available-models.md %}) to find image models.
+Refer to the [Working with Models Guide]({% link guides/models.md %}) and the [Available Models Guide]({% link available-models.md %}) to find image models.
 
 ## Image Sizes
 
@@ -120,7 +120,7 @@ image_portrait = RubyLLM.paint(
 ```
 
 {: .note }
-Not all models support size customization. If a size is specified for a model that doesn't support it (like Google Imagen), RubyLLM may log a debug message indicating the size parameter is ignored. Check the provider's documentation or the [Available Models Guide]({% link guides/available-models.md %}) for supported sizes.
+Not all models support size customization. If a size is specified for a model that doesn't support it (like Google Imagen), RubyLLM may log a debug message indicating the size parameter is ignored. Check the provider's documentation or the [Available Models Guide]({% link available-models.md %}) for supported sizes.
 
 ## Working with Generated Images
 

docs/guides/models.md

@@ -50,7 +50,7 @@ The registry stores crucial information about each model, including:
 
 This registry allows RubyLLM to validate models, route requests correctly, provide capability information, and offer convenient filtering.
 
-You can see the full list of currently registered models in the [Available Models Guide]({% link guides/available-models.md %}).
+You can see the full list of currently registered models in the [Available Models Guide]({% link available-models.md %}).
 
 ### Refreshing the Registry