I had that feeling too, so I started publishing his posts in GitBook, which has nice formatting and syntax highlighting: https://www.gitbook.io/book/aminb/rust-for-c

The repo, from which the book is built, is available on GitHub: https://github.com/aminb/rust-for-c

I tried contacting and asking him before, but didn't hear back, so I just went ahead and did it myself.