Merlin's day 16 (#488)

* Merlin's day 16

* Update docs/2023/puzzles/day16.md

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Co-authored-by: Jamie Thompson <[email protected]>

Author: merlinorg

docs/2023/puzzles/day16.md

@@ -470,5 +470,8 @@ def part2(input: String) =
 
 ## Solutions from the community
 
+- [Solution](https://github.com/merlinorg/aoc2023/blob/main/src/main/scala/Day16.scala) by [merlin](https://github.com/merlinorg/)
+
+
 Share your solution to the Scala community by editing this page.
 You can even write the whole article! [See here for the expected format](https://github.com/scalacenter/scala-advent-of-code/discussions/424)