How can we create our own CDN links?

If you are already using those files on your own website you can easily give links to those files like http://www.yoursite.com/path/to/your/file/style.js.

If you want to continue serving different versions you can achieve that by adding version numbers to your files like style.1.2.3.js or keeping them in separate directories like /v1.2/style.js.

The other option is to use some sort of CDN Hosting service like Cloudflare. You can find more services like this with a quick google search.

Just put these files on any host with clear URL, something like cdn.myhost.com/style.css cdn.myhost.com/js.js

then anyone can link them to their code.