Renumbered styles to flow better

23-declared-intentions/README.md

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+Style #22
+==============================
+
+Constraints:
+
+- Existence of a run-time typechecker
+
+- Procedures and functions declare what types of arguments they expect
+
+- If callers send arguments of types that are't expected, the
+  procedures/functions are not executed
+
+
+Possible names:
+
+- declared intentions
+- "You've been warned!"
+