Update README.md

README.md

@@ -123,7 +123,10 @@ text = tokenizer.apply_chat_template(
 
 ### Agentic Usage
 
-SmolLM3 supports tool calling! Just pass your list of tools under the argument `xml_tools` (for standard tool-calling), or `python_tools` (for calling tools like python functions in a `<code>` snippet).
+SmolLM3 supports tool calling!
+Just pass your list of tools:
+- either under the argument `xml_tools` for standard tool-calling: these tools will be called as JSON blobs within XML tags, like `<tool_call>{"name": "get_weather", "arguments": {"city": "Copenhagen"}}</tool_call>`
+- or under `python_tools`: then the model will call these tools like python functions in a `<code>` snippet, like `<code>get_weather(city="Copenhagen")</code>`
 
 ```python
 from transformers import AutoModelForCausalLM, AutoTokenizer