My site won't updated with GitHub commits

I have updated some new content to my website, I served my site in R studio, and everything works, but netlify doesn’t not update those new content.

my github repo

Here is the screenshot of R studio served site.

Hi @CongWang

I suggest it is to do with the date. In the Introduction of Python markdown file, the date is 2022-09-25, which quite probably hasn’t come around on the Netlify build machines yet.

In order to overcome this, you could change the date in the file, or use the --buildFuture option

yes, it is the reason, now it is updated, thanks