Changed the names of these two styles to what they really are: map reduce

30-map-reduce/README.md

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+Style #30
+==============================
+
+Constraints:
+
+- Input data is divided in chunks, similar to what an inverse multiplexer does to input signals
+
+- A map function applies a given worker function to each chunk of data, potentially in parallel
+
+- A reduce function takes the results of the many worker functions and recombines them into a coherent output
+
+Possible names:
+
+- Map-reduce
+- Inverse multiplexer (check out electronics)