Change all hrefs to working directory
===

I have to scrape a website and save all pages as HTML and put it entirely on a DVD. I've done this, but now all the links start with a `/`, and that grabs my root directory. I would like to change all `href`s of all files (1500 pages) to `href="./"` so it always grabs the working directory.

I've seen things about `sed` in `bash`, but I didn't quite catch how to dynamically grab all `href`s and change them.

How could I do this in an efficient way?