Typo: "eature-extraction" should be "feature-extraction"

### Issue

I found a small typo in the Hugging Face Course page.

The pipeline task name `feature-extraction` appears to be written as `eature-extraction`, missing the initial `f`.

### Location

Page:

https://huggingface.co/learn/llm-course/zh-CN/chapter1/3

Current text: `eature-extraction`

Expected text: `feature-extraction`

### Screenshot

Thanks for maintaining the course!