Help:presets: note project and user presets version must match
If the versions don't match, a non-specific presets error occurs
for commands like
cmake_minimum_required is optional, and putting it in the example
may make people considering presets think their whole project would
suddenly require a new CMake version--even for users not using presets. To avoid this confusion that
may turn people away from using presets, I think it should be
omitted from the example.