README fix

Author: germania

README.md

@@ -39,10 +39,11 @@ module.exports = {
 Note: if you are using `file-loader`, make sure to add `.wasm` to the test field, otherwise the module will not be copied! (e.g. `test: /\.(wasm|jpg|jpeg|png|gif|svg|eot|ttf|woff|woff2)$/i,`).
 
 Make sure you have the `cargo`, `rustc`, and (optionally) `emsdk` binaries somewhere in your `PATH`.  `stdweb` and other Rust libraries require a nightly build, which can be installed from https://rustup.rs/ .
+
 Require and initialize the wasm module:
 
 ```js
-const wasm = require('./main.rs')
+const wasm = require('./lib.rs')
 wasm.then(module => {
   // Use your module here
   console.log(module.doub(21))