Bunches of new docs.

Type inference!

A new treatment of recursion combinator patterns.

docs/sphinx_docs/_build/html/notebooks/Newton-Raphson.html

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@@ -257,7 +257,7 @@ generated already and epsilon ε is handy on the stack…</p>
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   <li><a href="index.html">Essays about Programming in Joy</a><ul>
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