update make file

binding/python/Makefile

@@ -0,0 +1,3 @@
+test:
+	cd ./multiverso && python -m unittest test.TestMultiversoTables.test_array
+	cd ./multiverso && python -m unittest test.TestMultiversoTables.test_matrix

binding/python/README.md

@@ -4,9 +4,7 @@ I presume you followed the [README](../../README.md) and have build multiverso s
 
 # Run tests
 ```
-cd ./multiverso
+make test
-python -m unittest test.TestMultiversoTables.test_array
-python -m unittest test.TestMultiversoTables.test_matrix
 ```