Merge pull request #456 from gassmoeller/add_a_feature

Removed an unnecessary space.

README.md

@@ -20,7 +20,7 @@ Rayleigh's repository.
 
 Parallelization
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-The pseudo-spectral nature of Rayleigh means that its parallelization necessarily relies heavily on *global communication* patterns.  That said, Rayleigh's parallelization is based around a 2-D domain decomposition and large-message-size all-to-alls.  These features allow the code to overcome many of the obstacles that traditionally limit the scalability of spectral methods.   The end result is a pseudo-spectral code optimized for petascale machines.  Rayleigh's pure-MPI mode has demonstrated highly efficient strong scaling on  131,000 cores of the Mira Blue Gene/Q supercomputer for problems with approximately 2048^3 grid points (2048 spherical harmonics).  Performance numbers from Mira are shown below.  A summary of Rayleigh's performance and how it compares against other popular dynamo codes (albeit at at smaller process counts) may be found in the recent performance benchmark results of [Matsui et al. (2016)](http://onlinelibrary.wiley.com/doi/10.1002/2015GC006159/full).
+The pseudo-spectral nature of Rayleigh means that its parallelization necessarily relies heavily on *global communication* patterns.  That said, Rayleigh's parallelization is based around a 2-D domain decomposition and large-message-size all-to-alls.  These features allow the code to overcome many of the obstacles that traditionally limit the scalability of spectral methods.  The end result is a pseudo-spectral code optimized for petascale machines.  Rayleigh's pure-MPI mode has demonstrated highly efficient strong scaling on  131,000 cores of the Mira Blue Gene/Q supercomputer for problems with approximately 2048^3 grid points (2048 spherical harmonics).  Performance numbers from Mira are shown below.  A summary of Rayleigh's performance and how it compares against other popular dynamo codes (albeit at at smaller process counts) may be found in the recent performance benchmark results of [Matsui et al. (2016)](http://onlinelibrary.wiley.com/doi/10.1002/2015GC006159/full).
 
 Getting Started
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