Add demo and documentation to run it in README.md

[A-caibird]

A demo that includes the video, .ass files, and the demo page. When I enter the demo directory and run pnpm install and pnpm dev, it can be run and used.

[ILOVEPIE]

I'm in the midst of a massive refactor of this project because I've finally nailed down the final structure and everything. I need to finish that refactor, do some OpenGL optimizations, and then I'll be able to have the demo ready. In the meantime I can send you a link to one of my real-world kitchen sink tests that I'm using to test how well it renders real files, not just synthetic tests.

[ILOVEPIE]

A demo that includes the video, .ass files, and the demo page. When I enter the demo directory and run pnpm install and pnpm dev, it can be run and used.

I can send you a link to one of my real-world kitchen sink tests that I'm using to test how well it renders real files, not just synthetic tests.

Links sent @A-caibird check your email.

[A-caibird]

thank you @ILOVEPIE

[ILOVEPIE]

thank you @ILOVEPIE

@A-caibird Please note, the OpenGL optimizations I have planned will likely fix any performance issues you encounter. The current design is unnecessarily draw call heavy so I'm reworking the compositor after the refactor and optimizing it.

[A-caibird]

@ILOVEPIE Thank you for your efforts, I sent you an email asking for help, if you have time, can you help me solve it?

I wrote a demo referring to SABRE.js/test/index.html, but the expected result was not achieved after running it.

Please do not post large code blocks in issues, if a large chunk of code is needed, use a gist. https://gist.github.com

[ILOVEPIE]

@A-caibird check your email. Also if you need a very large codeblock in an issue, please use a github gist instead.