Streamline comparisons directory into a single file #94
Description
These are auxiliary files that aren't really part of the project. If Downstyler is to be vendored as a submodule in other projects (rather than just the CSS file included via a CDN), it's OK to include the README, LICENSE, etc. in the cloned submodule, but having a directory with multiple comparison HTML files creates unnecessary noise.
Besides, these files are mostly duplicates of each other, with only the stylesheet changing. A better approach would be to set up a dynamic comparison view (possibly side-by-side — see #85) that allows swapping between multiple stylesheets (similar to https://github.com/dohliam/dropin-minimal-css), and perhaps even multiple "kitchen-sink" HTML sources, like https://www.webfx.com/web-design/html-ipsum/ or the source used in https://ress.page/example.