Document that Mac bindings can only be built on a Mac

Would be great to document that Mac bindings can only be built on a Mac, and that Pair to Mac will not work.

Better if it could be documented which built files from the Mac need to be moved back over to Windows, and how to incorporate them into the solution.

首先，跟踪 issue 中描述的 Mac binding 构建工作流和 Windows solution 工作流。记录仅限 Mac 的限制，解释 Pair to Mac 为什么无法工作，确定哪些已构建文件必须移回 Windows，并说明如何将它们添加到 solution 中。

由索引模型根据 Issue 内容生成。