message: added website deps note to building.md
  Added note that website dependencies need to be installed before `lint` tests can be run.
diff: The minimal supported version of [NodeJS](https://nodejs.org/) for development is 16.13.
  +**Note:** you need to run `npm install` in both the root directory and the `website` directory before you can run the lint tests.
  +
  ## Compiling
  - `npm run tsc` - compiles the source code only (excluding tests)
  