Fleshed out the README.

README

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+Haskell Style Guide
+===================
+
+Every major open-source project has its own style guide: a set of
+conventions (sometimes arbitrary) about how to write code for that
+project. It is much easier to understand a large codebase when all the
+code in it is in a consistent style.
+
+This project holds the style guidelines I use for my code.  If you are
+modifying a project that originated was created by me, you may be
+pointed to this page to see the style guides that apply to that
+project.