No, I just wanted to make it clear that to get that part of the code working it required a different kind of grant, rather than an extra one. I incorrectly read the instruction as the grant line should be added to the end of the file instead.

Something like: "...Just add the following grant type to `token.php` in place of (or just after) the previous ClientCredentials grant type..." would probably be better instead I guess.

I'll submit another pull request, once I've worked out how to do it.

Thanks