Added --output_folder, updated params, and tidied documentation

[TaylorBurnham]

I've been tinkering with this and made the following changes

• Tables have been added to README.md to tighten up the pages and reduce scrolling.
• Removed screenshots for Windows and substituted with the commands to make it easier for people to follow.
• Installation instructions have been adjusted for Windows and filled out a bit more for both operating systems, including a CUDA device compatibility check.
• Updated the usage list with the latest parameters from the most recent build.
• Added --output_folder to the command line arguments, which will create the path recursively and return a POSIX path for output.

I really dig this project although depending on what you feed it the results are nightmare fuel.

[TaylorBurnham]

It looks like cli.py is treating even quoted integers as ints so if the parameter --output_folder=1 was passed it would fail to create the path. I've explicitly typed it on the init() function but cutting over to argparse or something else can help this.

[hwayne]

Oh man, this is so useful to me. Thank you!

[batmanscode]

The output_folder is super useful! Thank you! 😃