Adding grover's algorithm for search in square root of input size. (#451)

quantum_computing/README.md

@@ -5,3 +5,5 @@
 * [:scroll:](advance_in_quantum_machine_learning.pdf) [Advances in quantum machine learning (2015)](https://arxiv.org/abs/1514.02900) (Jeremy Adcock, Euan Allen, Matthew Day, Stefan Frick, Janna Hinchliff, Mack Johnson, Sam Morley-Short, Sam Pallister, Alasdair Price, Stasja Stanisic)
 
 * [:scroll:](shors_algorithm.pdf) [Shors algorithm for polynomial time prime factorization (1995)](https://arxiv.org/pdf/quant-ph/9508027.pdf) (Peter W Shor)
+
+* [:scroll:](grovers_algorithm.pdf) [A fast quantum mechanical algorithm for database search](https://arxiv.org/pdf/quant-ph/9605043.pdf) (Lov K. Grover)