updated reaadme

Author: AbP-DAI

README.md

@@ -1,4 +1,4 @@
-# InvoiceBot – Query Structured Data with Microsoft.Extensions.AI
+# InvoiceBot – AI Assistant built using Microsoft.Extensions.AI
 
 This is a simple .NET-based AI app that uses **Microsoft.Extensions.AI** to a structured invoice dataset using **tool/function calls**.
 
@@ -7,8 +7,8 @@ This is a simple .NET-based AI app that uses **Microsoft.Extensions.AI** to a st
 
 ### Requirements
 
-- .NET 8
-- Azure OpenAI or OpenAI API Key
+- .NET 9
+- OpenAI API key(Also can use Llama, AzureOpenAi)
 - Visual Studio or VS Code
 
 ### Setup
@@ -19,7 +19,7 @@ This is a simple .NET-based AI app that uses **Microsoft.Extensions.AI** to a st
    "OpenAi": {
      "Key": "your-openai-key"
    }3. Run the app:
-   '''bash
+   ```bash
    dotnet run
 
 ## Example Queries

src/InvoicesBot.Console/Agent/Invoices.Tools.cs

@@ -28,7 +28,7 @@ public interface IInvoiceTools
 Notes:
 This uses LINQ.Dynamic for dynamic filtering and grouping.
 GPT 4x can generate reliable dynamic LINQ expressions compared to other models
-You can also do this manually using expressions or reflection or custom logic.
+You may need do this manually using expressions, reflection, custom logic or via api calls
 Or generate sql queries(careful) for filtering if your data is in a database.
 Comment out some tools if you are using a smaller models to avoid token limits.
  */