📚 Documentation Issue

The installation page is basic and does not provide clear guidelines on how users should install detectron2 in step by step process on the Windows system.

This issue category is for problems about existing documentation, not for asking how-to questions.

• Provide a link to an existing documentation/comment/tutorial:
  https://detectron2.readthedocs.io/en/latest/tutorials/install.html

• How should the above documentation/comment/tutorial improve:

1. listing dependencies before starting the installation process.
2. Provide a clear step-by-step process to install detectron2 on the Windows system.