Broken Link for HASHID_FIELD_SALT Documentation

[kaili-yang]

Hi,

I noticed that in the documentation, the section for HASHID_FIELD_SALT mentions "50-character random string; docs," but the link provided for "docs" is broken.

Additionally, I observed that the generation method for HASHID_FIELD_SALT is the same as that for DJANGO_SECRET_KEY. Could you clarify the differences in their roles within the project? Specifically, how do these two keys function differently despite their similar generation algorithms?

Thank you!