docs(readme): update Docker image size information

- Adjusts the reported size of the minimal Docker image from ~93 MB to ~166 MB.
- Reflects updated build size for accuracy and transparency.

README.md

@@ -10,7 +10,7 @@ This service acts as a transparent gateway that verifies an `apiKey` before forw
 
 * 🔐 **API key authentication** via query or form body
 * 📡 **Transparent proxying** to any LanguageTool backend
-* 🐳 **Minimal Docker image (\~93 MB)**
+* 🐳 **Minimal Docker image (\~166 MB)**
 * 🧱 **Statically compiled** Deno binary
 * 🧪 **Unit tested** middleware and proxy logic
 * 🛠️ Compatible with regular LT clients