diff --git a/README.md b/README.md
index a2e0a33..f986f21 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,14 @@
 # WasmOnCanvas
 
+## About
+This library aims to provide JavaScript bindinds to render patters on canvas with WebAssembly.
+
+## Prerequisites
+
+`wasm-pack` (https://rustwasm.github.io/wasm-pack/)
+
+## Build
+
+`wasm-pack build --target web`
+
+