Update README
No Windows support in README
@@ -56,7 +56,7 @@ $ pip install pyccl
For the PyPi installation, you will need ``CMake`` installed locally. See
[Getting CMake](https://ccl.readthedocs.io/en/latest/source/installation.html#getting-cmake)
-for instructions.
+for instructions. Note that the code only supports Linux or Mac OS, but no Windows.
Once you have the code installed, you can take it for a spin!
