Hi,
I'm currently enjoying this book on my Kindle (bought from O'Reilly, thanks for making it), and I'm coming across some spelling and grammar issues. I'd happily submit pull requests for many of these if you'd like, but looking in CONTRIBUTING.md, I see:
Feel free to send your pull requests unless you want to fix English grammar.
The way I read/understand this, is that you don't want any pull requests related to spelling/grammar. Is that correct?
Thanks again for the book,
Gerard.