Update README.md

Author: Nesterov Alexander

README.md

@@ -1,3 +1,3 @@
-# MPI_Practical_Course
+# MPI Practical Course
 [![Build Status](https://travis-ci.com/allnes/MPI_Practical_Course.svg?branch=master)](https://travis-ci.com/allnes/MPI_Practical_Course)
 [![Build status](https://ci.appveyor.com/api/projects/status/tnx3p934orsagg28/branch/master?svg=true)](https://ci.appveyor.com/project/allnes/mpi-practical-course/branch/master)