Merge pull request #175 from michel2323/michel2323-patch-1

Typo for the communicator in the README

Author: andreasnoack

README.md

@@ -179,7 +179,7 @@ interface with a C library), this can be achieved with the Fortran to C
 communicator conversion:
 
 ```
-juliacomm = MPI.MPI_COMM_WORLD
+juliacomm = MPI.COMM_WORLD
 ccomm = MPI.CComm(juliacomm)
 ```