docs: update api.md with streaming with tools is enabled (#8676)

docs/api.md

@@ -495,14 +495,14 @@ Generate the next message in a chat with a provided model. This is a streaming e
 
 - `model`: (required) the [model name](#model-names)
 - `messages`: the messages of the chat, this can be used to keep a chat memory
-- `tools`: tools for the model to use if supported. Requires `stream` to be set to `false`
+- `tools`: list of tools in JSON for the model to use if supported
 
 The `message` object has the following fields:
 
 - `role`: the role of the message, either `system`, `user`, `assistant`, or `tool`
 - `content`: the content of the message
 - `images` (optional): a list of images to include in the message (for multimodal models such as `llava`)
-- `tool_calls` (optional): a list of tools the model wants to use
+- `tool_calls` (optional): a list of tools in JSON that the model wants to use
 
 Advanced parameters (optional):