Update README.md - add OptimalUX

[Decuriosity]

Hi, add seo patching and a/b testing tool. Thanks in advance

• High Speed: The delay is only 10ms when loading a page, which is much faster than most similar tools
• Easy integration: Suitable for sites on Cloudflare without the need for in-depth code knowledge
• Testing without redirects
• Seamless user interactions with no blinking or blank screens
  etc.

[Decuriosity]

@hilmanski - Hi again 👋 Just thought I'd tag you in case you're not receiving PR notifications

[hilmanski]

Hi @Decuriosity. I apologize for the delayed response. Can you please update your PR to move the tool to "Miscellaneous Tools" section?