Fix wrong command in README.md (#62472)
Summary:
If it is `[15^,16^)`, 16.10 is not included.
https://github.com/Microsoft/vswhere/wiki/Examples
Fixes #{issue number}
Pull Request resolved: https://github.com/pytorch/pytorch/pull/62472
Reviewed By: nairbv
Differential Revision: D30103199
Pulled By: ezyang
fbshipit-source-id: 82085627ca53cd5a4e666848d27d4ab062de8352
