Examples should use the npm package

[tkrotoff]

Instead of:
import { ... } from '../../src/index'
use:
import { ... } from 'react-form-with-constraints'
with package.json having:
"react-form-with-constraints": "../.."

[tkrotoff]

Yarn does not support local package.json files, see yarnpkg/yarn#2822
With Lerna: lerna/lerna#618

[tkrotoff]

See c28d123