Update documentation and link to npm package Paragon

[Peter Kulko]

Recently, the @edx/paragon package has become outdated and now new releases are published in a new package with a new name - @openedx/paragon

Tasks

Beta Give feedback

1. Update links leading to the npm package page (current link - https://www.npmjs.com/package/@openedx/paragon)
2. Change descriptions that mention @edx/paragon to @openedx/paragon
3. Update Dependency usage analyzer