Small patch for internals manual documentation

Escaping a '<' fixes the error I'm getting when reading it.

Index: InternalsManual.html

Escaping a '<' fixes the error I'm getting when reading it.

Applied. FYI, the patch wrapped, which made it not apply. Please attach patches as attachments to the email instead of including them inline. This is obviously not a big deal with this small patch, but just mentioning it for the future. :slight_smile:

Thanks!

-Chris