message: docs(readme): Document that we support WebAssembly
diff: @@ -4,8 +4,9 @@ itk.js
  [![CircleCI](https://circleci.com/gh/InsightSoftwareConsortium/itk-js.svg?style=svg)](https://circleci.com/gh/InsightSoftwareConsortium/itk-js)
  Provides general scientific image IO capability and bridges
  -[ITK](https://itk.org) code running in the
  -[Emscripten](http://emscripten.org/) runtime environment.
  +[ITK](https://itk.org) code running in an
  +JavaScript [asm.js](http://asmjs.org/) or [WebAssembly]
  +(http://webassembly.org/) runtime environment.
  Supported file formats
  ----------------------
  