Add README in npm page

[Carlos Roso]

Seems like you missed to include the README.md when you ran npm publish so the npm page of the library shows an empty description. This is a problem I just caught within the ng-lib-schematics you used to generate the library. I'll open a PR adding that to the build workflow. For now I suggest you to create a new patch version and manually include README.md inside dist, then publish the new version.

As mentioned here having a proper README in the npm registry is good to appear on npm searches, and I guess that ranks your library as well in search engines.

[Netanel Basal]

Thanks!