make checklatex

This should produce no output other than echoing the command that it is running.  Currently, there are a number of problems with the document because this check was not made. I can correct some as editor; one will be harder to fix (the inappropriate use of color in an example). None of these should have been accepted; we need to make this part of the CI test. But until that time, please manually run make checklatex ; you can do this in a chapter directory, for example:

Thanks - this will help reduce problems with the standard.

Bill