message: add MolArt reference to readme
diff: @@ -9,6 +9,8 @@ The goal of **Mol\*** (*/'mol-star/*) is to provide a technology stack that will
  This particular project is the implementation of this technology (still under development).
  +*If you are looking for the "MOLeculAR structure annoTator", that package is now available on NPM as [MolArt](https://www.npmjs.com/package/molart).*
  +
  ## Project Overview
  The core of Mol* currently consists of these modules (see under `src/`):
  