Documentation inconsistent about preprocessor macros identifying AMD or NVIDIA platform

[Noerr]

HIP_PLATFORM_AMD or __HIP_PLATFORM_AMD__ ? HIP_PLATFORM_NVIDIA or __HIP_PLATFORM_NVIDIA__ ?

The paragraph Identifying HIP Target Platform should be more explicit in use of "is defined".

If talking about a preprocessor macro definition, then these names without double underscore are inconsistent with the following paragraph.

If talking about an environment variable set, then say "is defined in the environment". ( I suspect this is not the case, what would define such a variable )

This HIP FAQ by AMD suggests the right macro is no double underscores.