add newline

Author: arsalan0c

src/examples/source-3-non-det/queens.js

@@ -7,6 +7,7 @@
   as soon as the choice is generated, thereby reducing the search space. However, this is not
   enough to yield a quick solution when N = 8.
   This solution also gives repeated solutions (i.e different permutations that have all the same positions) upon backtracking.
+
   The second (queens_fast) uses non-determinism in picking only the row and not the column of each position, with the
   columns being fixed. This further reduces the search space, yielding a quick solution when N = 8.
 */