Day43: add follow up

Author: thatguyintech

day43/README.md

@@ -5,4 +5,12 @@ And also make it a max heap.
 
 [Python](./maxHeap.py)
 
-## Follow-up
+## Follow-up
+
+I was inspired to re-write the MinHeap into a MaxHeap and make the code
+cleaner due to this blog post:
+
+http://www.techiedelight.com/min-heap-max-heap-implementation-c/
+
+It has a pretty good looking implementation in C++.
+