message: Readme udpate
diff: @@ -47,7 +47,7 @@ remarkable `LLVM Compiler Infrastructure <http://llvm.org>`_ for back-end
  code generation and optimization and is `hosted on
  github <http://github.com/ispc/ispc/>`_. It supports Windows, Mac, and
  Linux, with both x86 and x86-64 targets. It currently supports the SSE2,
  -SSE4, AVX1, and AVX2 instruction sets.
  +SSE4, AVX, AVX2, and AVX512 instruction sets.
  Features
  --------
  @@ -69,16 +69,14 @@ Features
  with application data structures.
  * Portability across over a decade of CPU
  - generations: ``ispc`` has targets for SSE2, SSE4, AVX
  - (and soon, AVX2).
  + generations: ``ispc`` has targets for SSE2, SSE4, AVX, AVX2, and AVX512.
  * Portability across operating systems: Microsoft
  Windows, Mac OS X, and Linux are all supported
  by ``ispc``.
  * Debugging with standard tools: ``ispc``
  - programs can be debugged with standard debuggers (OS X and
  - Linux only).
  + programs can be debugged with standard debuggers.
  Additional Resources
  --------------------
  