[latexrefman] Add section on \@dottedtocline

[Hefferon, Jim S.]

I think this finishes off the Table of Contents material.  I also added a few examples, and moved the mention of \l at section, etc., up to the Table of Contents section to avoid describing the same thing twice.

Hey, some of the existing sections have tables of the arguments.  An example is \addtocontents.  Should I be doing that, and just forgot from a year ago?

Jim

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