update release notes

src/docs/releases/3.0.0.md

@@ -85,10 +85,11 @@ We've introduced the `IAzureAISearchIndexSettingsHandler` interface, enabling de
   - `DeleteAsync(id)`  
 - New methods added to `AzureAISearchIndexSettingsService`:  
   - `Task<AzureAISearchIndexSettings> NewAsync(string source, JsonNode data = null)` 
-  - `Task SetMappingsAsync(AzureAISearchIndexSettings settings)`
   - `Task<ValidationResultDetails> ValidateAsync(AzureAISearchIndexSettings settings)`  
   - `Task SynchronizeAsync(AzureAISearchIndexSettings settings)`  
+  - `Task CreateAsync(AzureAISearchIndexSettings settings)`  
 - The method `GetMappingsAsync` was removed from `AzureAIIndexDocumentManager`. Instead you may use `AzureAISearchIndexSettingsService.SetMappingsAsync`.
+- The method `GetIndexFullName` was removed from `AzureAISearchIndexManager`.
 
 These enhancements provide greater flexibility, improved maintainability, and an easier integration experience.