[latexrefman] Sectioning

[Hefferon, Jim S.]

Added subsections for \chapter, \section, etc.  Adjusted the wording of the main section, which was basically Lamport's.

There is some more to do here, particularly with \frontmatter, etc., and tocdepth.  But this is plenty for one commit.

Jim

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[T]he great thing about the Republican party in the US in 2018 is that, obviously, anyone willing to run with an R against their name is a person who is willing to declare that they are a pervert and a traitor, someone who will trade with the enemies of civilization and democracy for personal financial gain.  Cool.  Thanks.  Good to know.