What is the deal with Chinese characters?

I noticed that many pages have Chinese characters. For example, In the answer to 1.1-1 in https://github.com/gzc/CLRS/blob/master/C01-The-Role-of-Algorithms-in-Computing/1.1.md , I see

用到排序的应用很多，比如电商网站对商品按价格进行排序

The above is just an example. But I see many such instances in the repository. Is that intentional?