Correct Docker image size in README

Updated the image size from ~1.9 MB to ~1.1 MB in the README.

README.md

@@ -4,7 +4,7 @@
 
 Access your home network remotely via a custom domain name without a static IP!
 
-A feature-complete dynamic DNS client for Cloudflare, written in Rust. The **smallest and most memory-efficient** open-source Cloudflare DDNS Docker image available — **~1.9 MB image size** and **~3.5 MB RAM** at runtime, smaller and leaner than Go-based alternatives. Built as a fully static binary from scratch with zero runtime dependencies.
+A feature-complete dynamic DNS client for Cloudflare, written in Rust. The **smallest and most memory-efficient** open-source Cloudflare DDNS Docker image available — **~1.1 MB image size** and **~3.5 MB RAM** at runtime, smaller and leaner than Go-based alternatives. Built as a fully static binary from scratch with zero runtime dependencies.
 
 Configure everything with environment variables. Supports notifications, heartbeat monitoring, WAF list management, flexible scheduling, and more.