How do I upload files to Cloudflare R2?

You can upload files to R2 using the Cloudflare dashboard, the R2 API, or through various command-line tools like `r2mc`. The dashboard provides a simple web interface for uploading files. The API allows programmatic uploads, and `r2mc` is a command-line client for more advanced operations. Ensure you have the necessary permissions and bucket configured before uploading.