C# example README update (#202)

examples/csharp/README.md

@@ -1,21 +1,15 @@
 # Gen-AI C# Phi-2 Example
 
-## Install the onnxruntime-genai library
-
-
 ## Get the model
 
-You can generate the model using the model builder this library, or bring your own model.
-
-If you bring your own model, you need to provide the configuration. See the [config reference](https://onnxruntime.ai/docs/genai/reference/config).
+You can generate the model using the model builder provided with this library, or bring your own model.
 
 To generate the model with model builder:
 
 1. Install the python package
 
    Install the Python package according to the [installation instructions](https://onnxruntime.ai/docs/genai/install).
 
-
 2. Install the model builder script dependencies
 
    ```bash
@@ -25,13 +19,18 @@ To generate the model with model builder:
    pip install onnx
    pip install onnxruntime
    ```
+
 3. Run the model builder script to export, optimize, and quantize the model. More details can be found [here](../../src/python/py/models/README.md)
 
    ```bash
    cd examples/python
    python -m onnxruntime_genai.models.builder -m microsoft/phi-2 -e cpu -p int4 -o ./example-models/phi2-int4-cpu
    ```
 
+The model builder also generates the configuration needed by the API to run generation. You can modify the config according to your scenario.  
+
+If you bring your own model, you need to provide the configuration. See the [config reference](https://onnxruntime.ai/docs/genai/reference/config).
+
 ## Run the phi-2 model
 
 Install the OnnxRuntime.GenAI nuget according to the [installation instructions](https://onnxruntime.ai/docs/genai/install).