Update README.md

Author: syoyo

README.md

@@ -2,7 +2,7 @@
 
 `TinyUSDZ` is secure, portable and dependency-free(depends only on C++ STL. Other 3rd-party libraries included. Yes, you don't need pxrUSD/OpenUSD library!) USDZ/USDC/USDA library written in C++14.
 
-[Wasm demo!](https://lighttransport.github.io/tinyusdz/index.html) (requires 60MB file download)
+[Wasm demo!](https://lighttransport.github.io/tinyusdz/index.html) (requires 10MB file download)
 
 <img src="https://github.com/syoyo/tinyusdz/assets/18676/2419ddf6-4410-4bcc-b9c1-466bf29d3b20" width="400px">
 (from https://github.com/syoyo/Vulkan-glTF-USDZ-PBR)