message: docs(README): Make note about mesh support
diff: @@ -3,7 +3,7 @@ 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
  +Provides general scientific image, mesh, and point set IO capability and bridges
  [ITK](https://itk.org) code running in an
  [asm.js](http://asmjs.org/) or [WebAssembly](http://webassembly.org/)
  runtime environment.
  @@ -11,6 +11,8 @@ runtime environment.
  Supported file formats
  ----------------------
  +Images
  +
  - [BioRad](http://www.bio-rad.com/)
  - [BMP](https://en.wikipedia.org/wiki/BMP_file_format)
  - [DICOM](http://dicom.nema.org/)
  @@ -30,6 +32,10 @@ Supported file formats
  - [Tagged Image File Format (TIFF)](https://en.wikipedia.org/wiki/TIFF)
  - [VTK legacy image file format](http://www.vtk.org/VTK/img/file-formats.pdf)
  +Meshes and point sets
  +
  +- [VTK Legacy File Format vtkPolyData](https://www.vtk.org/wp-content/uploads/2015/04/file-formats.pdf)
  +
  Installation
  ------------
  