message: docs(readme): Correct WebAssembly link
diff: @@ -5,8 +5,8 @@ itk.js
  Provides general scientific image IO capability and bridges
  [ITK](https://itk.org) code running in an
  -JavaScript [asm.js](http://asmjs.org/) or [WebAssembly]
  -(http://webassembly.org/) runtime environment.
  +JavaScript [asm.js](http://asmjs.org/) or [WebAssembly](http://webassembly.org/)
  +runtime environment.
  Supported file formats
  ----------------------
  