Grey Li

Looks good on my side: 

Replace the current badge with: ``` [](https://codecov.io/gh/helloflask/bootstrap-flask) ```

Sure, no problem.

AFAIK, only the import statements and extension class initialization need to be updated.

Can you add some tests for this change? Also, please add an item to the changelog.

I'm not sure. Users can control this with `_use_li` parameter based on their preference, so I don't think we need to change anything.

Fixed in the 1.0.0 version, please try to update it with: ``` pip install -U flask-ckeditor ``` Thanks!

Hello, I am maintaining [Bootstrap-Flask](https://github.com/greyli/bootstrap-flask) that based on Flask-Bootstrap and **support Bootstrap 4**, maybe you can give it a try.

Flask-Bootstrap does not provide a template called `bootstrap/nav.html`, I guess you are using [Bootstrap-Flask](https://github.com/greyli/bootstrap-flask) since the latter has the `bootstrap/nav.html` template and the `render_nav_item` macro.

有知友反馈「Sphinx 发音中的音标 ɪ 发音有误」。