doco tweak

Author: alimanfoo

docs/index.rst

@@ -36,13 +36,13 @@ Install Zarr from PyPI::
 
     $ pip install zarr
 
-Please note that Zarr includes a C extension providing integration
-with the Blosc library. Pre-compiled binaries are available for
-Windows platforms and will be installed automatically via pip if
-available. However, if you have a newer CPU that supports the AVX2
-instruction set (e.g., Intel Haswell, Broadwell or Skylake) then
-compiling from source is preferable, as the Blosc library includes
-some optimisations for those architectures::
+Zarr includes a C extension providing integration with the Blosc
+library. Pre-compiled binaries are available for Windows platforms and
+will be installed automatically via pip if available. However, if you
+have a newer CPU that supports the AVX2 instruction set (e.g., Intel
+Haswell, Broadwell or Skylake) then compiling from source is
+preferable, as the Blosc library includes some optimisations for those
+architectures::
 
     $ pip install --no-binary=:all: zarr