Add entry for perfect_square.py

northtree · northtree · commit 330659ddd40f · 2019-10-27T15:15:00.000+11:00
diff --git a/algorithms/math/index.md b/algorithms/math/index.md
@@ -4,4 +4,5 @@
 * [Fibonacci Number](fibonacci_number.py)
 * [Nth Prime Number](prime.py)
 * [Sieve of Erastothenes](sieve_of_eratosthenes.py)
+* [Perfect Square](perfect_square.py)
 
